US2776054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease and oil interceptor
Assignee: RUTH R NEWMAN
•
Filing: 1954-02-23
•
Granted: 1957-01-01
•
Expires: 1974-02-23
Abstract
No abstract record available.
Inventors
- 👤 Hirshstein Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:08
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0211; B01D17/0214
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US715266A
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US771927A
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US1045811A
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GB191309770A
Cited
US1140118A
Cited
US1159044A
Cited
US2146542A
Cited
US2022118A
Cited
US2405705A
Cited
US2479386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |