US2891107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pen lifter mechanism for remote writing instrument
Assignee: Individual
•
Filing: 1955-07-07
•
Granted: 1959-06-16
•
Expires: 1975-07-07
Abstract
No abstract record available.
Inventors
- 👤 Weingart Ben
- 👤 Jr Robert Emmet Poole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:00
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/02; B43L13/022; B43L13/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1415499A
Cited
US2332523A
Cited
US2582043A
Cited
US2590294A
Cited
US2583720A
Cited
US2676869A
Cited
US2692301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-15 | 1962-12-15 | 1963-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-15 | 1966-12-15 | 1967-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-15 | 1970-12-15 | 1971-06-16 | $7700.00 | Window Closed / Lapsed |