US2875981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: ROSEMARY M HUNTER
•
Filing: 1955-09-16
•
Granted: 1959-03-03
•
Expires: 1975-09-16
Abstract
No abstract record available.
Inventors
- 👤 James F Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:05
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/28; E06B9/30; E06B9/32; E06B9/322; Y; Y10; Y10T; Y10T24/00; Y10T24/39
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US361573A
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US1106132A
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US2041892A
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FR828130A
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US2174994A
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US2656126A
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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 |