US2980284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-sealing gasket
Assignee: EIDP Inc
•
Filing: 1957-08-30
•
Granted: 1961-04-18
•
Expires: 1977-08-30
Abstract
No abstract record available.
Inventors
- 👤 James M Gill
- 👤 Cleveland L Hildebrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:54
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/46; F16J15/48; D; D01; D01D; D01D4/00; D01D4/08; F16L; F16L17/00; F16L17/06; F16L17/08; Y; Y10; Y10S; Y10S285/00; Y10S285/917; Y10S29/00; Y10S29/034; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49297; Y10T29/49826; Y10T29/49908; Y10T29/49936; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1339636A
Cited
US1483499A
Cited
DE493575C
Cited
US1904250A
Cited
US2647656A
Cited
US2641381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |