US1957792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outside pipe cleaning machine
Assignee: W K M Co
•
Filing: 1929-04-19
•
Granted: 1934-05-08
•
Expires: 1949-04-19
Abstract
No abstract record available.
Inventors
- 👤 Mcmanis Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:05
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/023; Y; Y10; Y10T; Y10T29/00; Y10T29/45; Y10T29/4506
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) | 1937-05-07 | 1937-11-06 | 1938-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-05-07 | 1941-11-06 | 1942-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-05-07 | 1945-11-06 | 1946-05-08 | $7700.00 | Window Closed / Lapsed |