US2825952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clothespin
Assignee: PETCAR RES CORP
•
Filing: 1955-08-19
•
Granted: 1958-03-11
•
Expires: 1975-08-19
Abstract
No abstract record available.
Inventors
- 👤 John F Van Driel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:51
CPC Classifications
D; D06; D06F; D06F55/00; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44983
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1868726A
Cited
US2519987A
Cited
FR942707A
Cited
FR928823A
Cited
CH246459A
Cited
GB614019A
Cited
GB644758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |