US2875662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: J E POORMAN Inc
•
Filing: 1956-04-18
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Granted: 1959-03-03
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Expires: 1976-04-18
Abstract
No abstract record available.
Inventors
- 👤 John E Poorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:35
CPC Classifications
B; B23; B23B; B23B29/00; B23B29/04; B23B29/043; Y; Y10; Y10T; Y10T82/00; Y10T82/25; Y10T82/2585
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US79381A
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US624490A
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FR333716A
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US810238A
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US927527A
Cited
US1418983A
Cited
US2346084A
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US2547789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |