Patent US3533285A successfully refreshed from Google Patents.
US3533285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mass flow meter (time lapse)
Assignee: Individual
•
Filing: 1967-11-03
•
Granted: 1970-10-13
•
Expires: 1987-11-03
Abstract
No abstract record available.
Inventors
- 👤 Colin William Dee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:43
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/76; G01F1/78; G01F1/80; G01F1/82
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2642740A
Cited
US2975635A
Cited
US3043143A
Cited
GB945366A
Cited
US3144769A
Cited
US3224271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |