US2291823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe coating machine
Assignee: Individual
•
Filing: 1939-07-01
•
Granted: 1942-08-04
•
Expires: 1959-07-01
Abstract
No abstract record available.
Inventors
- 👤 Alfred O Mickelson
- 👤 Alexander J Duaei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:13
CPC Classifications
F; F16; F16L; F16L58/00; F16L58/02; F16L58/16; B; B05; B05B; B05B13/00; B05B13/02; B05B13/04; B05B13/0405; B05B13/041; B05B13/0436; B05B13/0442; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1062; Y10T279/1074
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) | 1945-08-03 | 1946-02-02 | 1946-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-03 | 1950-02-02 | 1950-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-03 | 1954-02-02 | 1954-08-04 | $7700.00 | Window Closed / Lapsed |