US2923512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1957-01-17
•
Granted: 1960-02-02
•
Expires: 1977-01-17
Abstract
No abstract record available.
Inventors
- 👤 Elwin B Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:40
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/02; B65D19/00; B65D19/0004; B65D19/0006; B65D19/0008; B65D19/002; B65D19/0024; B65D19/0026; B65D19/0053; B65D19/0055; B65D19/0067; B65D19/0069; B65D71/0088; B65D71/0092; B65D71/0096; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00024; B65D2519/00049; B65D2519/00059; B65D2519/00258; B65D2519/00263; B65D2519/00273; B65D2519/00283; B65D2519/00293; B65D2519/00298; B65D2519/00313; B65D2519/00323; B65D2519/00328; B65D2519/00333; B65D2519/00343; B65D2519/00348; B65D2519/00353; B65D2519/00547; B65D2519/00552; B65D2519/00557; B65D2519/00562
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |