US2740973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making lock screws having friction locking plugs inserted therein
Assignee: Nylok LLC
•
Filing: 1952-10-17
•
Granted: 1956-04-10
•
Expires: 1972-10-17
Abstract
No abstract record available.
Inventors
- 👤 Carl H Borner
- 👤 Dominico R Tarallo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:17
CPC Classifications
B; B23; B23G; B23G9/00; B23G9/001; Y; Y10; Y10S; Y10S470/00; Y10S470/906; Y10T; Y10T408/00; Y10T408/52; Y10T408/54; Y10T408/545
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1935979A
Cited
US1448969A
Cited
US1701644A
Cited
US2361091A
Cited
US2401000A
Cited
US2380291A
Cited
GB585045A
Cited
US2520121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |