US2935561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote writing instrument
Assignee: Individual
•
Filing: 1955-03-23
•
Granted: 1960-05-03
•
Expires: 1975-03-23
Abstract
No abstract record available.
Inventors
- 👤 Weingart Ben
- 👤 Zillman Jack Howard
- 👤 Jr Robert Emmet Poole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:38
CPC Classifications
G; G08; G08C; G08C21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US684579A
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US1789637A
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US1901673A
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US2094039A
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US2205531A
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US2611191A
Cited
US2477673A
Cited
US2582043A
Cited
US2590294A
Cited
US2583720A
Cited
US2692301A
Cited
US2613266A
Cited
US2618704A
Cited
US2712694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |