Patent US3141114A successfully refreshed from Google Patents.
US3141114A
Expired / Lapsed
US
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Blasting machine
Assignee: VIBRATION MEASUREMENT ENGINEERS
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Filing: 1962-03-28
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Granted: 1964-07-14
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Expires: 1982-03-28
Abstract
No abstract record available.
Inventors
- 👤 Richard H Jenkins
- 👤 Elmer H Wieber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:18
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/04; F42D1/045; F42D1/05
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
IN A BLASTING MACHINE, (A) A FIRST SWITCH UNIT HAVING OPERATOR MEANS FOR ACTUATING SAID SWITCH UNIT FROM A NORMAL OPEN POSITION TO A CLOSED POSITION, (B) A SECOND SWITCH UNIT HAVING A CONDUCTOR MEANS MOVABLE FROM A FIRST POSITION TO A SECOND POSITION, (C) CONTROL MEANS FOR SAID FIRST AND SECOND SWITCH UNITS CONNECTED TO SAID CONDUCTOR MEANS FOR MOVING SAID CONDUCTOR MEANS FROM SAID FIRST POSITION TO SAID SECOND POSITION, SAID CONTROL MEANS OPERATIVELY ASSOCIATED WITH SAID OPERATOR MEANS OF THE FIRST SWITCH UNIT FOR LOCKING SAID CONDUCTOR MEANS OF THE SECOND SWITCH UNIT IN SAID FIRST POSITION WHEN SAID FIRST SWITCH UNIT IS IN AN OPEN POSITION AND UNLOCKING SAID CONDUCTOR MEANS WHEN SAID FIRST SWITCH UNIT IS IN A
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) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |