US2544304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug nut
Assignee: Individual
•
Filing: 1946-12-09
•
Granted: 1951-03-06
•
Expires: 1966-12-09
Abstract
No abstract record available.
Inventors
- 👤 Dana C Eckenbeck
- 👤 Philip E Slaughter
- 👤 Charles L Madden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:31
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/12; F16B37/122; F16B37/04; F16B37/06; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/968; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49945; Y10T403/00; Y10T403/49; Y10T403/4966; Y10T403/4991; Y10T403/53; Y10T403/535
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1207413A
Cited
US1104864A
Cited
US1681048A
Cited
FR708468A
Cited
US2017154A
Cited
US2254502A
Cited
US2181550A
Cited
US2154116A
Cited
US2371927A
Cited
US2307080A
Cited
US2321466A
Cited
US2490594A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |