US2761562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infiltration type chemical feeder
Assignee: Individual
•
Filing: 1953-03-06
•
Granted: 1956-09-04
•
Expires: 1973-03-06
Abstract
No abstract record available.
Inventors
- 👤 Ray H Moody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:14
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/688; B; B01; B01F; B01F21/00; B01F21/20; B01F21/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US370798A
Cited
US791367A
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US976665A
Cited
US1273259A
Cited
US1216051A
Cited
US1592126A
Cited
US2471158A
Cited
US2455240A
Cited
US2649203A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |