US2717796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: ELEANOR M HARTWELL
•
Filing: 1952-02-08
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Granted: 1955-09-13
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Expires: 1972-02-08
Abstract
No abstract record available.
Inventors
- 👤 Charles G Cudney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:49
CPC Classifications
E; E05; E05C; E05C3/00; E05C3/12; E05C3/122; Y; Y10; Y10S; Y10S292/00; Y10S292/31; Y10S70/00; Y10S70/54; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1105438A
Cited
US2030699A
Cited
US2461393A
Cited
US2476268A
Cited
US2424962A
Cited
US2558361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |