US1979288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming collared apertures in sheet metal articles including chronometer indicators
Assignee: Individual
•
Filing: 1933-02-20
•
Granted: 1934-11-06
•
Expires: 1953-02-20
Abstract
No abstract record available.
Inventors
- 👤 Francis R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:44
CPC Classifications
G; G04; G04B; G04B19/00; G04B19/04; G04B19/042; G04D; G04D3/00; G04D3/0002; G04D3/0043; G04D3/0046; Y; Y10; Y10S; Y10S29/00; Y10S29/04; Y10T; Y10T29/00; Y10T29/49; Y10T29/49579; Y10T29/49583
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 |