US1777708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heat treating hydrocarbon oils
Assignee: HYDROGENATING PROCESS Corp
•
Filing: 1928-05-02
•
Granted: 1930-10-07
•
Expires: 1948-05-02
Abstract
No abstract record available.
Inventors
- 👤 Wade Henry Clay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:48
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/14; C10G9/18; C10G9/20; F; F28; F28D; F28D7/00; F28D7/02; F28F; F28F27/00; F28F27/02; F28D21/00; F28D2021/0019; F28D2021/0059
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1933-10-06 | 1934-04-07 | 1934-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-10-06 | 1938-04-07 | 1938-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-10-06 | 1942-04-07 | 1942-10-07 | $7700.00 | Window Closed / Lapsed |