US3474970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air assist nozzle
Assignee: Parker Hannifin Corp
•
Filing: 1967-03-15
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Granted: 1969-10-28
•
Expires: 1987-03-15
Abstract
No abstract record available.
Inventors
- 👤 Harold C Simmons
- 👤 Eugene R Hogg
- 👤 Roy C Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:27
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; F23D11/106; F23D11/107; F23D2900/00; F23D2900/11101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2595759A
Cited
US2643916A
Cited
US2566788A
Cited
US2703260A
Cited
US3013732A
Cited
US3346412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |