US3437343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasketing apparatus
Assignee: American Flange and Manufacturing Co Inc
•
Filing: 1965-12-30
•
Granted: 1969-04-08
•
Expires: 1985-12-30
Abstract
No abstract record available.
Inventors
- 👤 Eugene Greck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:23
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/68; B29C70/78; B29C70/80; Y; Y10; Y10T; Y10T279/00; Y10T279/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1275569A
Cited
US2443987A
Cited
US2679713A
Cited
US2807180A
Cited
US2955829A
Cited
US3052479A
Cited
US3294392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |