US2953160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bypass proportioner
Assignee: Akron Brass Co
•
Filing: 1958-08-20
•
Granted: 1960-09-20
•
Expires: 1978-08-20
Abstract
No abstract record available.
Inventors
- 👤 Jack H Brazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:37
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/43; B01F25/432; B01F25/4321; B01F25/43211; B01F25/30; B01F25/31; B01F25/311; B01F25/3111; B01F25/312; B01F25/3121; B01F25/3124; B01F25/31242; B01F25/31243; B01F33/00; B01F33/80; B01F33/834; B01F23/00; B01F23/20; B01F23/23; B01F23/235; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87338; Y10T137/87346; Y10T137/87571; Y10T137/87587; Y10T137/87619; Y10T137/87627; Y10T137/87643
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1679774A
Cited
US2164153A
Cited
US2101356A
Cited
US2716507A
Cited
US2756762A
Cited
US2895710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |