US3377783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1965-08-30
•
Granted: 1968-04-16
•
Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Henry T Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:52
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D46/2403; B01D46/2411; B01D46/0002; B01D46/0004; B01D46/52; B01D46/521; B01D46/66; B01D46/70; B01D46/71; B01D2265/00; B01D2265/02; B01D2265/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB914187A
Cited
US766495A
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US1012122A
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US1847368A
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US2526651A
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US2533268A
Cited
US2562699A
Cited
GB812244A
Cited
US3034652A
Cited
GB943527A
Cited
US3204390A
Cited
US3169109A
Cited
GB974144A
Cited
US3234714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |