US2963158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1956-09-11
•
Granted: 1960-12-06
•
Expires: 1976-09-11
Abstract
No abstract record available.
Inventors
- 👤 Jung Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:23
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/20; B01D33/00; B01D33/06; B01D33/073; B01D33/09; B01D33/44; B01D33/46; B01D33/466; B01D33/70; B01D37/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE19137E
Cited
US1979991A
Cited
US2197610A
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US2265386A
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US2576288A
Cited
US2720315A
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US2790762A
Cited
US2741369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |