US3420448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle for a heating or ventilating system
Assignee: Clear Hooters Ltd
•
Filing: 1966-05-19
•
Granted: 1969-01-07
•
Expires: 1986-05-19
Abstract
No abstract record available.
Inventors
- 👤 John Douglas Snow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:48
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/1426; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F13/02; F24F13/06; F24F13/065; F24F13/1413; B; B64; B64D; B64D13/00; B64D2013/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US595014A
Cited
US2735353A
Cited
GB533791A
Cited
US2513463A
Cited
US2974580A
Cited
US3010381A
Cited
US3138085A
Cited
US3319560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |