Patent US2259872A successfully refreshed from Google Patents.
Patent US3135676A successfully refreshed from Google Patents.
US3135676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material treatment method and apparatus
Assignee: Sealtron Corp
•
Filing: 1960-11-08
•
Granted: 1964-06-02
•
Expires: 1980-11-08
Abstract
No abstract record available.
Inventors
- 👤 Rothacker Francis Neill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:28
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/10; B29C59/106
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
THE IMPROVED METHOD OF TREATING THE SURFACE OF A SYNTHETIC ORGANIC MATERIAL TO ALTER THE PROPERTIES THEREOF, COMPRISING DISPOSING A PAIR OF SPACED ELECTRODES ALONG AND IN CLOSE PROXIMITY TO SAID SURFACE AND SIMULTANEOUSLY APPLYING A VOLTAGE BETWEEN SAID ELECTRODES SUFFICIENT TO ESTABLISH A HIGH VOLTAGE ELECTRIC DISCHARGE WHICH EXTENDS IN A DIRECTION SUBSTANTIALLY PARALLEL TO AND SUBSTANTIALLY HUGS SAID SURFACE BETWEEN SAID ELECTRODES.
References Cited (Backward Citations)
US2397615A
Cited
US2810933A
Cited
US2923964A
Cited
US2859480A
Cited
US2894139A
Cited
US2969463A
Cited
US3057792A
Cited
US3021270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |