US2406308A
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Assignee: Vokes Ltd
•
Filing: 1943-09-01
•
Granted: 1946-08-20
•
Expires: 1963-09-01
Abstract
No abstract record available.
Inventors
- 👤 Vokes Cecil Gordon
- 👤 Stokes Edward Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:53
CPC Classifications
B; B01; B01D; B01D29/00; B01D29/88; B01D29/92; B01D29/11; B01D29/117; B01D29/44; B01D29/46; B01D29/48; B01D29/50; B01D29/56; B01D29/58; Y; Y10; Y10S; Y10S210/00; Y10S210/13
Claims Analysis
Total Claims: 0
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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) | 1949-08-19 | 1950-02-18 | 1950-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-08-19 | 1954-02-18 | 1954-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-08-19 | 1958-02-18 | 1958-08-20 | $7700.00 | Window Closed / Lapsed |