US2512797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Bowser Inc
•
Filing: 1945-09-28
•
Granted: 1950-06-27
•
Expires: 1965-09-28
Abstract
No abstract record available.
Inventors
- 👤 Frank B Harvuot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:53
CPC Classifications
B; B01; B01D; B01D39/00; B01D39/14; B01D39/16; B01D39/18; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D29/21; B01D29/216; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US817253A
Cited
US1744510A
Cited
US2092548A
Cited
US2170074A
Cited
US2196821A
Cited
US2325399A
Cited
US2347384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |