US3146785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Umbrella
Assignee: Individual
•
Filing: 1961-05-26
•
Granted: 1964-09-01
•
Expires: 1981-05-26
Abstract
No abstract record available.
Inventors
- 👤 Iwashita Wasaku
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:36
CPC Classifications
A; A45; A45B; A45B19/00; A45B19/06; A45B25/00; A45B25/02; A45B25/14; A45B25/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1797019A
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FR1114846A
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FR1145042A
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US2932304A
Cited
US3072920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |