US2967813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic marking device
Assignee: Individual
•
Filing: 1958-08-29
•
Granted: 1961-01-10
•
Expires: 1978-08-29
Abstract
No abstract record available.
Inventors
- 👤 Allen R Lindsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:48
CPC Classifications
C; C25; C25F; C25F7/00; C25F3/00; C25F3/02; C25F3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN AUTOMATIC MARKING DEVICE FOR THE ELECTROLYTIC MARKING OF METALS, COMPRISING A WORK-CONTACTING HEAD INCLUDING AN ELECTRODE AND DIELECTRIC STENCIL MEANS, SUPPORT MEANS FOR SAID HEAD, A SURFACE ADAPTED TO A POSITION THE WORK TO BE MARKED FOR ENGAGEMENT BY THE HEAD, DRIVE MEANS OPERATIVE TO RECIPROCATE SAID SUPPORT MEANS AND HENCE THE WORK-CONTACTING HEAD RELATIVE TO SUCH SURFACE, ELECTRIC CIRCUIT MEANS FOR CONTROLLING SUCH OPERATION OF THE DRIVE MEANS IN ACCORDANCE WITH A PREDETERMINED TIMED CYCLE OF ACTUATION THEREOF, FURTHER CIRCUIT MEANS FOR APPLYING CURRENT TO THE ELECTRODE MEANS OF THE WORK-CONTACTING HEAD, AND MEANS FOR ENERGIZING SAID FURTHER CIRCUIT MEANS THUS TO APPLY CURRENT TO THE ELECTRODE MEANS IN RESPONSE TO ENGAGEMENT OF THE WORK BY SAID HEAD.
Claim 2
Dependent Claim
120 words
AN AUTOMATIC MARKING DEVICE FOR THE ELECTROLYTIC MARKING OF METALS, COMPRISING A WORK-CONTACTING HEAD INCLUDING AN ELECTRODE AND DIELECTRIC STENCIL MEANS, SUPPORT MEANS FOR SAID HEAD, A SURFACE ADAPTED TO A POSITION THE WORK TO BE MARKED FOR ENGAGEMENT BY THE HEAD, DRIVE MEANS OPERATIVE TO RECIPROCATE SAID SUPPORT MEANS AND HENCE THE WORK-CONTACTING HEAD RELATIVE TO SUCH SURFACE, ELECTRIC CIRCUIT MEANS FOR CONTROLLING SUCH OPERATION OF THE DRIVE MEANS IN ACCORDANCE WITH A PREDETERMINED TIMED CYCLE OF ACTUATION THEREOF, FURTHER CIRCUIT MEANS FOR APPLYING CURRENT TO THE ELECTRODE MEANS OF THE WORK-CONTACTING HEAD, AND MEANS FOR ENERGIZING SAID FURTHER CIRCUIT MEANS THUS TO APPLY CURRENT TO THE ELECTRODE MEANS IN RESPONSE TO ENGAGEMENT OF THE WORK BY SAID HEAD.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |