US2850971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock-up
Assignee: Fredk H Levey Co Inc
•
Filing: 1955-05-02
•
Granted: 1958-09-09
•
Expires: 1975-05-02
Abstract
No abstract record available.
Inventors
- 👤 George R Brodie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:38
CPC Classifications
B; B41; B41F; B41F27/00; B41F27/12; B41F27/1218; B41F27/1225; B41F27/1243
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1276336A
Cited
FR553002A
Cited
US1531124A
Cited
US1704563A
Cited
US2137851A
Cited
US2768579A
Cited
US2764089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |