Patent US2121629A successfully refreshed from Google Patents.
Patent US1460831A successfully refreshed from Google Patents.
US1460831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
thompson
Assignee: —
•
Filing: —
•
Granted: 1923-07-03
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Expires: 1940-07-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:21
CPC Classifications
F; F01; F01M; F01M3/00; F02; F02D; F02D9/00; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0228; F02D2700/023; F02D2700/0238
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) | 1926-07-02 | 1927-01-01 | 1927-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-07-02 | 1931-01-01 | 1931-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-07-02 | 1935-01-01 | 1935-07-03 | $7700.00 | Window Closed / Lapsed |