US1785986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for rolling sheet metal
Assignee: Individual
•
Filing: 1928-07-06
•
Granted: 1930-12-23
•
Expires: 1948-07-06
Abstract
No abstract record available.
Inventors
- 👤 Speer James Ramsey
- 👤 Fredellia H Moyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:41
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/22; B21B1/08; B21B27/00; B21B27/02; B21B45/00; B21B45/04; B21B45/06; Y; Y10; Y10T; Y10T29/00; Y10T29/30; Y10T29/301; Y10T29/303
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) | 1933-12-22 | 1934-06-23 | 1934-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-12-22 | 1938-06-23 | 1938-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-12-22 | 1942-06-23 | 1942-12-23 | $7700.00 | Window Closed / Lapsed |