US3041762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1960-03-16
•
Granted: 1962-07-03
•
Expires: 1980-03-16
Abstract
No abstract record available.
Inventors
- 👤 David M Knox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:41
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US678012A
Cited
FR611444A
Cited
US2242148A
Cited
US2565553A
Cited
US2731749A
Cited
FR1088058A
Cited
US2862322A
Cited
US2860437A
Cited
US2961789A
Cited
US2971282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |