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Patent US2616431A successfully refreshed from Google Patents.
US2616431A
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Assignee: —
•
Filing: —
•
Granted: 1952-11-04
•
Expires: 1969-11-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:41
CPC Classifications
B; B42; B42F; B42F5/00; A; A63; A63H; A63H33/00; A63H33/38; B42D; B42D1/00; B42D1/003; B42D1/006; B42D1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1955049A
Cited
US2514068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |