US1494122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1923-06-20
•
Granted: 1924-05-13
•
Expires: 1943-06-20
Abstract
No abstract record available.
Inventors
- 👤 Jasper A Mccaskell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:30
CPC Classifications
B; B01; B01D; B01D29/00; B01D33/00; B01D33/15; B01D33/21; B01D33/80; B01D33/804; B01D33/807; B01D35/00; B01D35/14; B01D35/157; B01D37/00; B01D37/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-05-13 | 1927-11-12 | 1928-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-05-13 | 1931-11-12 | 1932-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-05-13 | 1935-11-12 | 1936-05-13 | $7700.00 | Window Closed / Lapsed |