Patent US3002850A successfully refreshed from Google Patents.
US3002850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graphite flake coated low friction sheet material
Assignee: Individual
•
Filing: 1959-08-26
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Granted: 1961-10-03
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Expires: 1979-08-26
Abstract
No abstract record available.
Inventors
- 👤 William H Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:26
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/73; D06M11/74; B; B24; B24D; B24D11/00; B24D11/001; B24D11/005; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; D06M15/00; D06M15/19; D06M15/21; D06M15/263; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2041; Y10T442/2123; Y10T442/2131
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
A SHEET MATERIAL HAVING A LOW FRICTION SURFACE, COMPRISING: A FLEXIBLE SUPPORTING SHEET, A THIN COATING THEREON OF A FLEXIBLE, ADHERENT, NON-TACKY BINDER CONTAINING ABOUT 0.75-1.25 PARTS FINE GRAPHITE HAVING NOT MORE THAN ABOUT 10% RETAINED ON A 60 MESH SCREEN AND A MAJOR PORTION PASSING THROUGH A 200 MESH SCREEN AND ABOUT 1-1.5 PARTS OF GRAPHITE GRAINS SUBSTANTIALLY ALL OF WHICH PASS THROUGH A 35 MESH SCREEN BUT ARE SUBSTANTIALLY ENTIRELY RETAINED ON A 50 MESH SCREEN, AND A SURFACE COVERING OF GRAPHITE FLAKES PARTIALLY EMBEDDED IN SAID COATING, ALL SAID PARTS AND PERCENTAGES BEING BY WEIGHT.
Claim 2
Dependent Claim
98 words
A SHEET MATERIAL HAVING A LOW FRICTION SURFACE, COMPRISING: A FLEXIBLE SUPPORTING SHEET, A THIN COATING THEREON OF A FLEXIBLE, ADHERENT, NON-TACKY BINDER CONTAINING ABOUT 0.75-1.25 PARTS FINE GRAPHITE HAVING NOT MORE THAN ABOUT 10% RETAINED ON A 60 MESH SCREEN AND A MAJOR PORTION PASSING THROUGH A 200 MESH SCREEN AND ABOUT 1-1.5 PARTS OF GRAPHITE GRAINS SUBSTANTIALLY ALL OF WHICH PASS THROUGH A 35 MESH SCREEN BUT ARE SUBSTANTIALLY ENTIRELY RETAINED ON A 50 MESH SCREEN, AND A SURFACE COVERING OF GRAPHITE FLAKES PARTIALLY EMBEDDED IN SAID COATING, ALL SAID PARTS AND PERCENTAGES BEING BY WEIGHT.
Claim 3
Independent Claim
111 words
THE METHOD OF MAKING A SHEET MATERIAL HAVING A LOW FRICTION SURFACE, COMPRISING: APPLYING TO ONE SIDE OF A FLEXIBLE SUPPORTING SHEET A MIXTURE COMPRISING A LIQUID COATING OF A BINDER CONTAINING ABOUT 0.75-1.25 PARTS FINE GRAPHITE HAVING NOT MORE THAN ABOUT 10% RETAINED ON A 60 MESH SCREEN AND A MAJOR PORTION PASSING THROUGH A 200 MESH SCREEN, AND ABOUT 1-1.5 PARTS OF GRAPHITE GRAINS SUBSTANTIALLY ALL OF WHICH PASS THROUGH A 35 MESH SCREEN AND ARE RETAINED ON A 50 MESH SCREEN, APPLYING TO SAID COATING WHILE WET A COVERING OF GRAPHITE FLAKES IN AN AMOUNT THAT IS SUBSTANTIALLY THE MAXIMUM THAT WILL ADHERE THERETO, AND DRYING SAID COATING.
Claim 4
Independent Claim
111 words
THE METHOD OF MAKING A SHEET MATERIAL HAVING A LOW FRICTION SURFACE, COMPRISING: APPLYING TO ONE SIDE OF A FLEXIBLE SUPPORTING SHEET A MIXTURE COMPRISING A LIQUID COATING OF A BINDER CONTAINING ABOUT 0.75-1.25 PARTS FINE GRAPHITE HAVING NOT MORE THAN ABOUT 10% RETAINED ON A 60 MESH SCREEN AND A MAJOR PORTION PASSING THROUGH A 200 MESH SCREEN, AND ABOUT 1-1.5 PARTS OF GRAPHITE GRAINS SUBSTANTIALLY ALL OF WHICH PASS THROUGH A 35 MESH SCREEN AND ARE RETAINED ON A 50 MESH SCREEN, APPLYING TO SAID COATING WHILE WET A COVERING OF GRAPHITE FLAKES IN AN AMOUNT THAT IS SUBSTANTIALLY THE MAXIMUM THAT WILL ADHERE THERETO, AND DRYING SAID COATING.
References Cited (Backward Citations)
US2879178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |