US2542956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pin-setting machine
Assignee: Northrop Grumman Corp
•
Filing: 1945-04-23
•
Granted: 1951-02-20
•
Expires: 1965-04-23
Abstract
No abstract record available.
Inventors
- 👤 Edgar W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:35
CPC Classifications
B; B23; B23P; B23P19/00; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53313; Y10T29/53383; Y10T29/53396
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US480530A
Cited
US552043A
Cited
US775215A
Cited
US1901459A
Cited
US1944360A
Cited
US2215388A
Cited
US2340653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |