US2818199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry chemical feeder
Assignee: Tower Iron Works Inc
•
Filing: 1956-07-12
•
Granted: 1957-12-31
•
Expires: 1976-07-12
Abstract
No abstract record available.
Inventors
- 👤 Fain Morton Edgar
- 👤 Robert W Alarie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:28
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015; B01J8/002; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/68; C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; C02F1/687
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US817727A
Cited
US1730784A
Cited
US1845429A
Cited
US2002420A
Cited
US2435039A
Cited
US2439014A
Cited
US2520546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |