US2707897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expanding, undercutting insert
Assignee: Individual
•
Filing: 1948-05-04
•
Granted: 1955-05-10
•
Expires: 1968-05-04
Abstract
No abstract record available.
Inventors
- 👤 Martin L Beeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:04
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/12; F16B13/126; B; B23; B23B; B23B51/00; B23B51/0018; B23B51/0045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49938; Y10T29/4994; Y10T29/53; Y10T29/53909; Y10T29/5393; Y10T409/00; Y10T409/30; Y10T409/306216
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1330385A
Cited
US1621598A
Cited
US1752999A
Cited
US1762349A
Cited
US2353851A
Cited
US2370327A
Cited
GB569774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-09 | 1958-11-08 | 1959-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-09 | 1962-11-08 | 1963-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-09 | 1966-11-08 | 1967-05-10 | $7700.00 | Window Closed / Lapsed |