US3076233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stress-relieving free-sintered polytetrafluoroethylene
Assignee: ThyssenKrupp Budd Co
•
Filing: 1961-02-28
•
Granted: 1963-02-05
•
Expires: 1981-02-28
Abstract
No abstract record available.
Inventors
- 👤 John S Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:44
CPC Classifications
C; C08; C08J; C08J7/00; Y; Y10; Y10S; Y10S138/00; Y10S138/03; Y10S425/00; Y10S425/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
THE METHOD OF STRESS-RELIEVING A FREE-SINTERED BODY OF FLUOROCARBON MATERIAL NORMALLY HAVING LOCKED-IN-STRESSES
Claim 2
Independent Claim
13 words
THE METHOD OF STRESS-RELIEVING A FREE-SINTERED BODY OF FLUOROCARBON MATERIAL NORMALLY HAVING LOCKED-IN-STRESSES
References Cited (Backward Citations)
US2456262A
Cited
US2939178A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |