US2844053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine parts boring machine
Assignee: Individual
•
Filing: 1955-11-21
•
Granted: 1958-07-22
•
Expires: 1975-11-21
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Wagner
- 👤 Fred A Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:21
CPC Classifications
B; B23; B23B; B23B41/00; B23B41/12; Y; Y10; Y10S; Y10S408/00; Y10S408/707; Y10T; Y10T408/00; Y10T408/55; Y10T408/553; Y10T408/557; Y10T408/561; Y10T408/5612; Y10T408/563; Y10T408/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1198201A
Cited
US2000476A
Cited
US2174709A
Cited
US2224386A
Cited
US2278314A
Cited
US2372088A
Cited
US2614442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |