US2733922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
diego
Assignee: —
•
Filing: —
•
Granted: 1956-02-07
•
Expires: 1973-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:00
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/035; A63B23/04; A63B23/0405; A63B21/00; A63B21/06; A63B21/062; A63B21/0622; A63B21/0626; A63B21/0628; A63B21/068; A63B22/00; A63B22/0087; A63B23/03516; A63B23/03533; A63B23/08; A63B23/085; A63B22/0015; A63B22/0023; A63B2208/00; A63B2208/02; A63B2208/0242; A63B2208/0252; A63B2208/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US309678A
Cited
US325519A
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US421045A
Cited
US828221A
Cited
US1205426A
Cited
US1750549A
Cited
US1979783A
Cited
US1982872A
Cited
US2456412A
Cited
US2562339A
Cited
US2657055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-06 | 1959-08-08 | 1960-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-06 | 1963-08-08 | 1964-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-06 | 1967-08-08 | 1968-02-07 | $7700.00 | Window Closed / Lapsed |