Patent US2979274A successfully refreshed from Google Patents.
US2979274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food waste disposer
Assignee: Westinghouse Electric Corp
•
Filing: 1957-08-09
•
Granted: 1961-04-11
•
Expires: 1977-08-09
Abstract
No abstract record available.
Inventors
- 👤 Robert H Tull
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:47
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/26; E03C1/266; E03C1/2665; Y; Y10; Y10S; Y10S4/00; Y10S4/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB512177A
Cited
US2428420A
Cited
US2442812A
Cited
US2477686A
Cited
US2657397A
Cited
US2575905A
Cited
US2824702A
Cited
US2813534A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |