US2553570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facing device
Assignee: Individual
•
Filing: 1945-08-09
•
Granted: 1951-05-22
•
Expires: 1965-08-09
Abstract
No abstract record available.
Inventors
- 👤 Edward R Flynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:27
CPC Classifications
B; B23; B23B; B23B3/00; B23B3/22; B23B3/26; B23B3/265; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/306216; Y10T409/306384; Y10T82/00; Y10T82/25; Y10T82/2522
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB198621A
Cited
US1625800A
Cited
US1747944A
Cited
US1795323A
Cited
US2211134A
Cited
US2283323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |