US2742924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston for divisional feeder
Assignee: TRABON ENGINEERING Corp
•
Filing: 1950-08-08
•
Granted: 1956-04-24
•
Expires: 1970-08-08
Abstract
No abstract record available.
Inventors
- 👤 Robert L Harter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:07
CPC Classifications
F; F16; F16N; F16N25/00; F16N25/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86831; Y10T137/86879
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR408691A
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US537862A
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US583822A
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GB190009767A
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US721483A
Cited
GB190802090A
Cited
US1906313A
Cited
US1816151A
Cited
US2372850A
Cited
US2489450A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |