US2983181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet fastener
Assignee: NELSON STUD WELDING DIVISION O
•
Filing: 1957-11-12
•
Granted: 1961-05-09
•
Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Roger W Sholle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:27
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/36; E04D3/3605; F; F16; F16B; F16B19/00; F16B19/04; F16B19/05
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE636479C
Cited
US930450A
Cited
US1199525A
Cited
GB270585A
Cited
US1959519A
Cited
FR39827E
Cited
US1930187A
Cited
US2081305A
Cited
FR821645A
Cited
US2241898A
Cited
US2334406A
Cited
US2441981A
Cited
US2396661A
Cited
US2542376A
Cited
US2570626A
Cited
US2663270A
Cited
US2764045A
Cited
US2788571A
Cited
US2894526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |