Patent US3302700A successfully refreshed from Google Patents.
US3302700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blender heat exchanger apparatus
Assignee: Dynamics Corp of America
•
Filing: 1965-03-09
•
Granted: 1967-02-07
•
Expires: 1985-03-09
Abstract
No abstract record available.
Inventors
- 👤 William F Dugan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/0206; F28D1/0213; A; A47; A47J; A47J27/00; A47J27/004; A47J43/00; A47J43/04; A47J43/046; B; B01; B01F; B01F35/00; B01F35/90; B01F35/93; Y; Y10; Y10S; Y10S165/00; Y10S165/318; Y10S165/32; Y10S165/321
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2084614A
Cited
DE659774C
Cited
US2283904A
Cited
US2951684A
Cited
US3057603A
Cited
US2991161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |