US1974919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for engraving molds
Assignee: National Rubber Machinery Co
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Filing: 1930-12-03
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Granted: 1934-09-25
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Expires: 1950-12-03
Abstract
No abstract record available.
Inventors
- 👤 Stanley W Harris
- 👤 Frank H Jennings
- 👤 Retus W Sethman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 03:16
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/16; B23C3/20; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T29/5158; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301624; Y10T409/30168; Y10T409/30224; Y10T409/306664; Y10T409/307448; Y10T409/307504
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) | 1937-09-24 | 1938-03-26 | 1938-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-09-24 | 1942-03-26 | 1942-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-09-24 | 1946-03-26 | 1946-09-25 | $7700.00 | Window Closed / Lapsed |