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US2720050A
Expired / Lapsed
US
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Under water animal trap support
Assignee: Individual
•
Filing: 1952-04-02
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Granted: 1955-10-11
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Expires: 1972-04-02
Abstract
No abstract record available.
Inventors
- 👤 William C Pfeiffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:14
CPC Classifications
A; A01; A01M; A01M23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US357650A
Cited
US486981A
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US1309036A
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US635542A
Cited
US898023A
Cited
US1083086A
Cited
GB191505942A
Cited
US1858713A
Cited
US2140612A
Cited
US2527629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |