US1638545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trap
Assignee: Individual
•
Filing: 1922-07-24
•
Granted: 1927-08-09
•
Expires: 1942-07-24
Abstract
No abstract record available.
Inventors
- 👤 Mueller Rudolph
- 👤 Otto L Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:47
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/24; B; B01; B01D; B01D29/00; B01D29/01; B01D29/62; B01D29/66; B01D29/70; B01D35/00; B01D35/12
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) | 1930-08-08 | 1931-02-07 | 1931-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-08-08 | 1935-02-07 | 1935-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-08-08 | 1939-02-07 | 1939-08-09 | $7700.00 | Window Closed / Lapsed |