US2765084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1952-07-15
•
Granted: 1956-10-02
•
Expires: 1972-07-15
Abstract
No abstract record available.
Inventors
- 👤 Charles M Tursky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:57
CPC Classifications
B; B01; B01D; B01D35/00; B01D35/30; B01D29/00; B01D29/11; B01D29/31; B01D29/33; B01D29/44; B01D29/48; B01D29/50; B01D29/52; B01D2201/00; B01D2201/04; B01D2201/043; B01D2201/0453
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR636693A
Cited
US1866970A
Cited
US2038355A
Cited
AT145995B
Cited
US2383672A
Cited
GB572996A
Cited
US2399887A
Cited
US2487769A
Cited
US2609933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |