Patent US3595493A successfully refreshed from Google Patents.
Patent US3177795A successfully refreshed from Google Patents.
US3177795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airflow and noise controlling plenum diffuser assembly
Assignee: Aircoustic Co Inc
•
Filing: 1962-01-12
•
Granted: 1965-04-13
•
Expires: 1982-01-12
Abstract
No abstract record available.
Inventors
- 👤 Jerome W Schutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:49
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/1426; F24F13/02; F24F13/06; F24F13/062; F24F13/1413; F24F13/24; F24F2013/1473; Y; Y10; Y10S; Y10S454/00; Y10S454/906
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2661677A
Cited
US2621579A
Cited
US2750865A
Cited
US2872859A
Cited
US2852999A
Cited
US2920357A
Cited
US2928331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |