Patent US1534973A successfully refreshed from Google Patents.
Patent US3219235A successfully refreshed from Google Patents.
US3219235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple discharge starting device
Assignee: Commercial Filters Corp
•
Filing: 1962-08-10
•
Granted: 1965-11-23
•
Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
- 👤 Robert N Burckhalter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:26
CPC Classifications
F; F02; F02N; F02N19/00; F02N19/001; F02N9/00; F02N9/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
IN A MULTIPLE DISCHARGE STARTING DEVICE, A BASE, CARTRIDGE DISCHARGING MEANS IN SAID BASE, A ROTARY RETAINER ADJACENT SAID BASE FOR PRESSURE FLUID CARTRIDGE EACH HAVING A BLUNT END AND A NOSE AT THE OTHER END, SAID RETAINER COMPRISING A PAIR OF SPACED PLATES HAVING APERTURES THEREIN TO RECEIVE EACH CARTRIDGE WITH THE NOSE THEREOF PROJECTING THROUGH THE APERTURES TOWARD SAID BASE, A COVER SHELL SLIDABLE OVER SAID RETAINER AND HAVING SOCKETS THEREIN TO RECEIVE THE BLUNT ENDS OF THE CARTRIDGES, A ROD EXTENDING THROUGH SAID BASE AND RETAINER, RELEASABLE LATCHING MEANS CONNECTING SAID ROD AND COVER SHELL, AND MANUALLY OPERABLE MEANS TO MOVE SAID ROD AND FORCE SAID COVER TOWARD SAID BASE TO DISCHARGE A CARTRIDGE ADJACENT SAID DISCHARGE MEANS.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |