Patent US588162A successfully refreshed from Google Patents.
Patent US1876902A successfully refreshed from Google Patents.
US1876902A
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Assignee: Individual
•
Filing: 1929-06-01
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Granted: 1932-09-13
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Expires: 1949-06-01
Abstract
No abstract record available.
Inventors
- 👤 Walter D Forbes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:20
CPC Classifications
G; G03; G03D; G03D15/00; G03D15/04; Y; Y10; Y10T; Y10T83/00; Y10T83/808; Y10T83/811; Y10T83/825; Y10T83/869; Y10T83/8798; Y10T83/8812; Y10T83/8821; Y10T83/8841; Y10T83/8844; Y10T83/929; Y10T83/9411; Y10T83/9447
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) | 1935-09-13 | 1936-03-14 | 1936-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-09-13 | 1940-03-14 | 1940-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-09-13 | 1944-03-14 | 1944-09-13 | $7700.00 | Window Closed / Lapsed |