US3095569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recorder
Assignee: CONVAL CORP
•
Filing: 1958-07-24
•
Granted: 1963-06-25
•
Expires: 1978-07-24
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul E Smith
- 👤 Daniel P Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:03
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
A RECORDER HAVING A PAIR OF SPACED ELECTRODES ADAPTED TO HAVE RECORDING PAPER PASS THEREBETWEEN, MEANS FOR CREATING A SPARK BETWEEN SAID ELECTRODES BY APPLYING A SPARKING VOLTAGE ACROSS SAID ELECTRODES AND MEANS IN PARALLEL WITH SAID LAST MENTIONED MEANS FOR APPLYING IMMEDIATELY SUBSEQUENTLY TO SAID SPARKING VOLTAGE AN INCREASED VOLTAGE ADAPTED TO CAUSE A CURRENT SURGE THROUGH SAID SPARK CAUSED BY SAID SPARKING VOLTAGE.
References Cited (Backward Citations)
US671548A
Cited
US1097131A
Cited
US1943746A
Cited
US2151936A
Cited
GB624738A
Cited
US2480890A
Cited
US2596741A
Cited
US2596118A
Cited
US2635032A
Cited
US2739865A
Cited
US2750247A
Cited
US2631918A
Cited
US2812445A
Cited
US2759783A
Cited
US2718448A
Cited
US2647033A
Cited
US2729818A
Cited
US2853629A
Cited
US2831987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |