Patent US2985187A successfully refreshed from Google Patents.
US2985187A
Expired / Lapsed
US
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Sewer cleansing alarm
Assignee: Individual
•
Filing: 1960-03-15
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Granted: 1961-05-23
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Expires: 1980-03-15
Abstract
No abstract record available.
Inventors
- 👤 Odell A Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:48
CPC Classifications
E; E03; E03F; E03F7/00; E03F2201/00; E03F2201/40; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/4456; Y10T137/4463; Y10T137/4576; Y10T137/4606; Y10T137/4613; Y10T137/8158; Y10T137/8342
Claims Analysis
Total Claims: 0
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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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |