US3316733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mufflers
Assignee: Hupp Corp
•
Filing: 1965-11-01
•
Granted: 1967-05-02
•
Expires: 1985-11-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Earl K Harley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:21
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/24; F24F1/00; F24F1/02; F24F1/03; F24F1/031; Y; Y10; Y10S; Y10S181/00; Y10S181/403
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
IN REFRIGERATION APPARATUS HAVING A COMPRESSOR AND A CONDENSER TO WHICH COMPRESSED REFRIGERANT IS DELIVERED BY THE COMPRESSOR THROUGH A DISCHARGE CONDUIT; A MUFFLER FOR SAID COMPRESSOR COMPRISING MEANS FORMING A CLOSED COLUMN CONNECTED TO SAID DISCHARGE CONDUIT IN PARALLEL WITH SAID CONDENSER.
Claim 2
Dependent Claim
43 words
IN REFRIGERATION APPARATUS HAVING A COMPRESSOR AND A CONDENSER TO WHICH COMPRESSED REFRIGERANT IS DELIVERED BY THE COMPRESSOR THROUGH A DISCHARGE CONDUIT; A MUFFLER FOR SAID COMPRESSOR COMPRISING MEANS FORMING A CLOSED COLUMN CONNECTED TO SAID DISCHARGE CONDUIT IN PARALLEL WITH SAID CONDENSER.
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |