US3362585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry chemical feeder
Assignee: Fischer and Porter Co
•
Filing: 1965-12-23
•
Granted: 1968-01-09
•
Expires: 1985-12-23
Abstract
No abstract record available.
Inventors
- 👤 David J Nessim
- 👤 Gerard P Albright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:27
CPC Classifications
G; G01; G01G; G01G11/00; G01G11/04; B; B01; B01F; B01F35/00; B01F35/20; B01F35/21; B01F35/211; B01F35/2117; B01F35/71; B01F35/714; G01G11/003; G01G11/08; G01G11/10; B01F23/00; B01F23/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1155340A
Cited
US1559772A
Cited
US2343722A
Cited
US2662665A
Cited
US2984386A
Cited
US2917207A
Cited
US3110419A
Cited
US3187944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |