US2529535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1946-10-04
•
Granted: 1950-11-14
•
Expires: 1966-10-04
Abstract
No abstract record available.
Inventors
- 👤 Friedrich H Bertelsmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:27
CPC Classifications
A; A63; A63F; A63F7/00; A63F7/0017; A63F11/00; A63F11/0051; A63F2011/0058
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US546499A
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US996224A
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US1119371A
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US1755212A
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US1911949A
Cited
US1922517A
Cited
US2248095A
Cited
US2275797A
Cited
US2296508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |