US2945509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank with proportioning means
Assignee: Individual
•
Filing: 1957-08-28
•
Granted: 1960-07-19
•
Expires: 1977-08-28
Abstract
No abstract record available.
Inventors
- 👤 Thomas S Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:31
CPC Classifications
F; F01; F01M; F01M3/00; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86187; Y10T137/86228
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US646927A
Cited
US1822901A
Cited
US1922930A
Cited
US2161060A
Cited
US2532379A
Cited
US2631608A
Cited
US2788801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-19 | 1964-01-18 | 1964-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-19 | 1968-01-18 | 1968-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-19 | 1972-01-18 | 1972-07-19 | $7700.00 | Window Closed / Lapsed |