Patent US2997068A successfully refreshed from Google Patents.
US2997068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid distributor
Assignee: Bird Machine Co Inc
•
Filing: 1960-05-09
•
Granted: 1961-08-22
•
Expires: 1980-05-09
Abstract
No abstract record available.
Inventors
- 👤 John T Roos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:09
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/15; B01D33/17; B01D33/19; B01D33/80; B01D33/82; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86493; Y10T137/86509; Y10T137/86517; Y10T137/86533; Y10T137/877; Y10T137/87788; Y10T137/87812; Y10T137/87917
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |