US1789688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
rastetal
Assignee: —
•
Filing: —
•
Granted: 1931-01-20
•
Expires: 1948-01-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:27
CPC Classifications
G; G07; G07B; G07B3/00; G07B3/02; B; B21; B21D; B21D28/00; B21D28/02; B65; B65H; B65H20/00; B65H20/02; Y; Y10; Y10T; Y10T83/00; Y10T83/081; Y10T83/091; Y10T83/096; Y10T83/098; Y10T83/444; Y10T83/4516; Y10T83/4518; Y10T83/4521; Y10T83/4539; Y10T83/4541; Y10T83/4544; Y10T83/525; Y10T83/849; Y10T83/868; Y10T83/869; Y10T83/8776; Y10T83/8785; Y10T83/8786; Y10T83/889; Y10T83/896
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) | 1934-01-19 | 1934-07-21 | 1935-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-01-19 | 1938-07-21 | 1939-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-01-19 | 1942-07-21 | 1943-01-20 | $7700.00 | Window Closed / Lapsed |