US2531113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1946-01-22
•
Granted: 1950-11-21
•
Expires: 1966-01-22
Abstract
No abstract record available.
Inventors
- 👤 Davis Wilbur Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:07
CPC Classifications
B; B43; B43K; B43K25/00; B43K25/02; B43K25/022; Y; Y10; Y10T; Y10T24/00; Y10T24/13; Y10T24/1321; Y10T24/1324; Y10T24/1341
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US599616A
Cited
US1339359A
Cited
FR505917A
Cited
FR539994A
Cited
US2224162A
Cited
US2237155A
Cited
US2418410A
Cited
US2418218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |