US2923808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and means for marking metal
Assignee: Individual
•
Filing: 1956-08-21
•
Granted: 1960-02-02
•
Expires: 1976-08-21
Abstract
No abstract record available.
Inventors
- 👤 Jr George Warren Wattles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:30
CPC Classifications
B; B21; B21C; B21C51/00; B21C51/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2125172A
Cited
FR759864A
Cited
US2066588A
Cited
US2079310A
Cited
US2273819A
Cited
US2337341A
Cited
US2490302A
Cited
US2513838A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |