US3227327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-cleaning metering device
Assignee: Pangborn Corp
•
Filing: 1962-08-02
•
Granted: 1966-01-04
•
Expires: 1982-08-02
Abstract
No abstract record available.
Inventors
- 👤 Charles H Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:20
CPC Classifications
B; B24; B24C; B24C9/00; B24C9/006; Y; Y02; Y02P; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US237162A
Cited
US1312263A
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US1657761A
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US1840505A
Cited
US2771189A
Cited
US2808969A
Cited
US2978105A
Cited
US3005547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |