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Patent US2732233A successfully refreshed from Google Patents.
US2732233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
W- macmillan ctal
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
2026-10-31 05:29
CPC Classifications
B; B62; B62D; B62D17/00; C; C01; C01F; C01F7/00; C01F7/48; C01F7/50; C01F7/54; Y; Y10; Y10T; Y10T403/00; Y10T403/36; Y10T403/362; Y10T403/57; Y10T403/5706
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1768347A
Cited
US1734194A
Cited
US1766926A
Cited
US2153271A
Cited
US2383378A
Cited
US2588544A
Cited
US2614862A
Cited
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 |