US2731952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
szabo
Assignee: —
•
Filing: —
•
Granted: 1956-01-24
•
Expires: 1973-01-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:25
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/022; B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/302; F15B2211/00; F15B2211/20; F15B2211/25; F15B2211/251; F15B2211/252; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/31; F15B2211/3138; F15B2211/315; F15B2211/3157; F15B2211/31576; F15B2211/50; F15B2211/505; F15B2211/50554; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7052; F15B2211/775; Y; Y10; Y10S; Y10S60/00; Y10S60/911; Y10T; Y10T279/00; Y10T279/12; Y10T279/1208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |