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US2529022A
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Assignee: Individual
•
Filing: 1946-10-04
•
Granted: 1950-11-07
•
Expires: 1966-10-04
Abstract
No abstract record available.
Inventors
- 👤 Richard I Heller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:08
CPC Classifications
B; B41; B41K; B41K3/00; B41K3/36; B41K3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US966938A
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US1228844A
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US1520277A
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US1842907A
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US1855199A
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US1879354A
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US1943404A
Cited
US2186336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |