US2694022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleaning sewers and the like
Assignee: Individual
•
Filing: 1952-08-18
•
Granted: 1954-11-09
•
Expires: 1972-08-18
Abstract
No abstract record available.
Inventors
- 👤 Edward B Schreiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:35
CPC Classifications
E; E03; E03F; E03F9/00; B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/043; B08B9/0433; B08B2209/00; B08B2209/02; B08B2209/027; B08B2209/04; B08B2209/045; Y; Y10; Y10S; Y10S239/00; Y10S239/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |