Patent US3385573A successfully refreshed from Google Patents.
US3385573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary matrix, gas conditioning device
Assignee: Studebaker Worthington Inc
•
Filing: 1965-05-14
•
Granted: 1968-05-28
•
Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Gilman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:45
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/0039; B01D46/0041; B01D46/0046; B01D46/0052; B01D46/0056; B01D46/24; B01D46/56; B01D46/58; B01D46/60; B01D46/62; B01D46/64; B01D50/00; B01D50/20; C; C10; C10K; C10K1/00; C10K1/02; F; F28; F28D; F28D19/00; F28D19/04; B01D2265/00; B01D2265/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1072849A
Cited
US1139385A
Cited
US2259762A
Cited
GB569930A
Cited
US2562589A
Cited
DE819240C
Cited
US2698745A
Cited
GB859097A
Cited
US2941872A
Cited
US3149626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |