Patent US2795240A successfully refreshed from Google Patents.
US2795240A
Expired / Lapsed
US
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Sewer inlet
Assignee: Individual
•
Filing: 1954-12-06
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Granted: 1957-06-11
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Expires: 1974-12-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas C Edwards
- 👤 Charles G Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:59
CPC Classifications
E; E03; E03F; E03F3/00; E03F3/04; Y; Y10; Y10S; Y10S285/00; Y10S285/923
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |