US3243236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low-friction bearing pads
Assignee: Individual
•
Filing: 1963-07-25
•
Granted: 1966-03-29
•
Expires: 1983-07-25
Abstract
No abstract record available.
Inventors
- 👤 John M Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:19
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/36; E01; E01D; E01D19/00; E01D19/04; E01D19/041; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16C2350/00; Y; Y10; Y10S; Y10S33/00; Y10S33/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
LOW-FRICTION SLIDING LOAD-BEARING MEANS FOR INSERTION BETWEEN TWO RELATIVELY SHIFTABLE STRUCTURAL MEMBERS, COMPRISING TWO PADS HAVING SLIDING SURFACES IN MUTUAL CONTACT AND BOTH HAVING A RESILIENT ELASTOMERIC BODY EACH WITH ONE OF ITS FACE ENGAGING ONE OF SAID STRUCTURAL MEMBERS THE OPPOSITE FACE OF ONE BODY HAVING AN EPOXY RESIN SHEET LAMINATED THERETO AND THE SHEET HAVING A SLICK SURFACE COMPRISING ONE OF SAID SLIDING SURFACES, AND THE OPPOSITE FACE OF THE OTHER BODY HAVING A TETRAFLUOROETHYLENE RESIN SHEET LAMINATED THERETO AND THIS SHEET HAVING A SLICK SURFACE COMPRISING THE OTHER OF SAID SLIDING SURFACES.
Claim 2
Dependent Claim
95 words
LOW-FRICTION SLIDING LOAD-BEARING MEANS FOR INSERTION BETWEEN TWO RELATIVELY SHIFTABLE STRUCTURAL MEMBERS, COMPRISING TWO PADS HAVING SLIDING SURFACES IN MUTUAL CONTACT AND BOTH HAVING A RESILIENT ELASTOMERIC BODY EACH WITH ONE OF ITS FACE ENGAGING ONE OF SAID STRUCTURAL MEMBERS THE OPPOSITE FACE OF ONE BODY HAVING AN EPOXY RESIN SHEET LAMINATED THERETO AND THE SHEET HAVING A SLICK SURFACE COMPRISING ONE OF SAID SLIDING SURFACES, AND THE OPPOSITE FACE OF THE OTHER BODY HAVING A TETRAFLUOROETHYLENE RESIN SHEET LAMINATED THERETO AND THIS SHEET HAVING A SLICK SURFACE COMPRISING THE OTHER OF SAID SLIDING SURFACES.
References Cited (Backward Citations)
DE941798C
Cited
GB684521A
Cited
US2719761A
Cited
US2705691A
Cited
US2815252A
Cited
US2906552A
Cited
US2809130A
Cited
US3000276A
Cited
GB883436A
Cited
US2956848A
Cited
US2970868A
Cited
FR1240143A
Cited
US3031202A
Cited
US3105252A
Cited
US3113493A
Cited
US3171698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |