US2872838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controllably expandable and removable fastener
Assignee: Individual
•
Filing: 1954-05-24
•
Granted: 1959-02-10
•
Expires: 1974-05-24
Abstract
No abstract record available.
Inventors
- 👤 Alvin R Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:15
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16B; F16B19/00; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/954; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17743; Y10T279/17752; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32861; Y10T403/32885; Y10T409/00; Y10T409/30; Y10T409/309576; Y10T409/309912; Y10T74/00; Y10T74/19; Y10T74/19623
Claims Analysis
Total Claims: 0
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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) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |