US2691506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skin stretcher
Assignee: Individual
•
Filing: 1953-08-03
•
Granted: 1954-10-12
•
Expires: 1973-08-03
Abstract
No abstract record available.
Inventors
- 👤 Wilson Merl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:01
CPC Classifications
B; B21; B21D; B21D1/00; B21D1/06; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |