Patent US3452667A successfully refreshed from Google Patents.
US3452667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air distribution terminal
Assignee: Carrier Corp
•
Filing: 1967-06-29
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Granted: 1969-07-01
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Expires: 1987-06-29
Abstract
No abstract record available.
Inventors
- 👤 Milton H Coleman
- 👤 Darwin G Traver
- 👤 Carl C Herb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:38
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/02; F24F13/06; Y; Y10; Y10S; Y10S454/00; Y10S454/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3074339A
Cited
US3145926A
Cited
GB1018084A
Cited
US3186327A
Cited
US3250203A
Cited
US3330379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |