US2816472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasket-carrying coupling nut
Assignee: Individual
•
Filing: 1953-07-13
•
Granted: 1957-12-17
•
Expires: 1973-07-13
Abstract
No abstract record available.
Inventors
- 👤 Roger C Boughton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:16
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/08; F16L19/083; F16L19/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1824642A
Cited
US2474319A
Cited
US2405822A
Cited
US2613086A
Cited
US2491884A
Cited
US2460032A
Cited
US2529552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |