Patent US5828851A successfully refreshed from Google Patents.
Patent US1980154A successfully refreshed from Google Patents.
US1980154A
Expired / Lapsed
US
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Means for connecting strips of sheet metal
Assignee: American Brass Co
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Filing: 1933-03-23
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Granted: 1934-11-06
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Expires: 1953-03-23
Abstract
No abstract record available.
Inventors
- 👤 James R Coe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:31
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/03; F; F16; F16B; F16B5/00; F16B5/06; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1457; Y10T24/148; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49922; Y10T29/49936; Y10T403/00; Y10T403/49; Y10T403/4974; Y10T403/71; Y10T403/7152
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-11-05 | 1938-05-07 | 1938-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-05 | 1942-05-07 | 1942-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-05 | 1946-05-07 | 1946-11-06 | $7700.00 | Window Closed / Lapsed |