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US3614940A
Expired / Lapsed
US
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Marking device with pressurized fluid flow
Assignee: CARCO Inc
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Filing: 1969-04-18
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Granted: 1971-10-26
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Expires: 1989-04-18
Abstract
Abstract A MARKING DEVICE HAVING THEREFOR A HOUSING WITH A RESERVOIR FOR STORING A LIQUID MARKING AGENT AND A RECIPROCALLY MOUNTED FEED TUBE HAVING ITS INNER END EXTENDING INTO THE RESERVOIR AND ITS OUTER END TERMINATING IN A MARKING NIB EXTERNALLY OF THE HOUSING. THE FEED TUBE IS RECIPROCATED DURING EACH MARKING STROKE TO ENGAGE A PLUNGER WITHIN THE RESERVOIR TO PUMP A CHARGE OF THE LIQUID MARKING AGENT INTO THE TUBE TO THE MARKING NIB.
Inventors
- 👤 Paul S Abrams
- 👤 Rudolph G Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:16
CPC Classifications
B; B41; B41K; B41K1/00; B41K1/36; B41K1/38; B05; B05C; B05C1/00; B05C1/02; B05C1/027
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |