US3134513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insufflator
Assignee: Dust Control Processes Ltd
•
Filing: 1960-09-30
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Granted: 1964-05-26
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Expires: 1980-09-30
Abstract
No abstract record available.
Inventors
- 👤 Ashman Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:28
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/685; B; B01; B01F; B01F23/00; B01F23/30; F; F23; F23J; F23J7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |