Patent US3001899A successfully refreshed from Google Patents.
US3001899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereotype mat
Assignee: Kimberly Clark Corp
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Filing: 1956-04-16
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Granted: 1961-09-26
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Expires: 1976-04-16
Abstract
No abstract record available.
Inventors
- 👤 Paul B Hansen
- 👤 Sedgwick C Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:50
CPC Classifications
B; B41; B41C; B41C3/00; B41C3/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1039; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/24463
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A BACKING FOR A STEREOTYPE MAT COMPRISING A PLURALITY OF CREPED, CELLULOSIC SHEETS IMPREGNATED WITH FROM ABOUT 15 TO 75 PERCENT, BY WEIGHT ON A DRY BASIS, OF A RESINOUS MATERIAL INCLUDING FROM ABOUT 65 TO 95 PERCENT OF A PHENOL-ALDEHYDE RESIN AND 5 TO 35 PERCENT OF A STYRENEMALEIC ANHYDRIDE COPOLYMER, SAID PHENOL-ALDEHYDE RESIN BEING IN A STATE OF LOW POLYMERIZATION AND SUBSTANTIALLY COMPLETELY WATER DISPERSIBLE IN SUCH STATE, SAID PHENOLALDEHYDE RESIN BEING SUBSTANTIALLY STABLE AT TEMPERATURES BELOW ABOUT 20*C. AND BEING CAPABLE OF BECOMING SUBSTANTIALLY CURED AT TEMPERATURES OF BETWEEN 250* AND 400* F., WHEREBY SAID BACKING IS MOISTURE PERMEABLE AND SAID RESINOUS MATERIAL IS SUBJECT TO LITTLE CHANGE IN PHYSICAL CHARACTERISTICS BELOW TEMPERATURES OF ABOUT 20*C., AND SAID RESINOUS MATERIAL BECOMES RIGID AT TEMPERATURES OF ABOUT 350*F.
Claim 2
Dependent Claim
130 words
A BACKING FOR A STEREOTYPE MAT COMPRISING A PLURALITY OF CREPED, CELLULOSIC SHEETS IMPREGNATED WITH FROM ABOUT 15 TO 75 PERCENT, BY WEIGHT ON A DRY BASIS, OF A RESINOUS MATERIAL INCLUDING FROM ABOUT 65 TO 95 PERCENT OF A PHENOL-ALDEHYDE RESIN AND 5 TO 35 PERCENT OF A STYRENEMALEIC ANHYDRIDE COPOLYMER, SAID PHENOL-ALDEHYDE RESIN BEING IN A STATE OF LOW POLYMERIZATION AND SUBSTANTIALLY COMPLETELY WATER DISPERSIBLE IN SUCH STATE, SAID PHENOLALDEHYDE RESIN BEING SUBSTANTIALLY STABLE AT TEMPERATURES BELOW ABOUT 20*C. AND BEING CAPABLE OF BECOMING SUBSTANTIALLY CURED AT TEMPERATURES OF BETWEEN 250* AND 400* F., WHEREBY SAID BACKING IS MOISTURE PERMEABLE AND SAID RESINOUS MATERIAL IS SUBJECT TO LITTLE CHANGE IN PHYSICAL CHARACTERISTICS BELOW TEMPERATURES OF ABOUT 20*C., AND SAID RESINOUS MATERIAL BECOMES RIGID AT TEMPERATURES OF ABOUT 350*F.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |