US1777772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die mechanism
Assignee: Maerican Flange & Manufacturing Co
•
Filing: 1929-04-11
•
Granted: 1930-10-07
•
Expires: 1949-04-11
Abstract
No abstract record available.
Inventors
- 👤 John W Shera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:16
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/40; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53709; Y10T29/53717
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) | 1933-10-06 | 1934-04-07 | 1934-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-10-06 | 1938-04-07 | 1938-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-10-06 | 1942-04-07 | 1942-10-07 | $7700.00 | Window Closed / Lapsed |