US3360898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete weld plate
Assignee: National Lock Co
•
Filing: 1965-11-08
•
Granted: 1968-01-02
•
Expires: 1985-11-08
Abstract
No abstract record available.
Inventors
- 👤 Melvin H Beckman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:44
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/16; E04C5/18; E04B; E04B1/00; E04B1/38; E04B1/41; E04B5/00; E04B5/16; E04B5/32; E04B5/36; E04B5/38; E04B5/40; E04B2001/4192
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US551032A
Cited
US871210A
Cited
US977704A
Cited
US1155411A
Cited
US1409645A
Cited
US1495659A
Cited
US2034726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |