US3029869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for installing temporary closures in transport vehicles
Assignee: Willoughby Manufacturing Co
•
Filing: 1959-02-09
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Granted: 1962-04-17
•
Expires: 1979-02-09
Abstract
No abstract record available.
Inventors
- 👤 Francis E Willoughby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:48
CPC Classifications
B; B60; B60J; B60J5/00; B60J5/04; B60J5/0497; B60J5/06; B60J5/062; B61; B61D; B61D19/00; B61D19/001; B61D19/002; Y; Y10; Y10T; Y10T292/00; Y10T292/03; Y10T292/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US260679A
Cited
US411343A
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US533868A
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US1938635A
Cited
US1985878A
Cited
US2599443A
Cited
US2863614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |