US3376753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Particulate flow meter apparatus
Assignee: Lewis Howe Co
•
Filing: 1963-11-26
•
Granted: 1968-04-09
•
Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Courtney G Pitkin
- 👤 Arun K Mitra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:47
CPC Classifications
G; G01; G01N; G01N11/00; G01N11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |