US2665530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Maintenance device
Assignee: FED MACHINE AND WELDER CO
•
Filing: 1951-09-14
•
Granted: 1954-01-12
•
Expires: 1971-09-14
Abstract
No abstract record available.
Inventors
- 👤 James F Deffenbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:21
CPC Classifications
B; B24; B24B; B24B21/00; B24B21/16; B24B23/00; B24B23/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US832889A
Cited
US1415785A
Cited
US1370441A
Cited
US1523151A
Cited
US1826177A
Cited
US2199069A
Cited
US2145418A
Cited
US2261244A
Cited
US2334960A
Cited
US2453972A
Cited
US2449519A
Cited
US2507372A
Cited
US2483720A
Cited
US2479506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |