US3522016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scraper apparatus for reaction chamber
Assignee: British Titan Products Co Ltd
•
Filing: 1968-01-16
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Granted: 1970-07-28
•
Expires: 1988-01-16
Abstract
No abstract record available.
Inventors
- 👤 James Dennis Groves
- 👤 Peter Alan Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:41
CPC Classifications
B; B01; B01J; B01J12/00; B01J12/02; B01J19/00; B01J19/0006; B01J19/002; B08; B08B; B08B9/00; B08B9/08; B08B9/087; C; C01; C01B; C01B13/00; C01B13/14; C01B13/20; C01B13/22; C01B13/26; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/07; B01J2219/00; B01J2219/00049; B01J2219/00245; B01J2219/00252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2088879A
Cited
US2326525A
Cited
US2976125A
Cited
GB881067A
Cited
US3241945A
Cited
US3423186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |