US3284607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazing method and apparatus
Assignee: Lockheed Martin Corp
•
Filing: 1959-09-09
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Granted: 1966-11-08
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Expires: 1979-09-09
Abstract
No abstract record available.
Inventors
- 👤 Georgia N Wernz
- 👤 Harris M Dolan
- 👤 Joseph A Gaydos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:24
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/0008; B23K1/0014; B23K1/008; B23K2101/00; B23K2101/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
45 words
AN ELECTROTHERMAL FIXTURE FOR BRAZING METAL HONEYCOMB CORE PANEL COMPRISING UPPER AND LOWER SECTIONS OF REFRACTORY MATERIAL HAVING OPPOSED CONTOURED SURFACES BETWEEN WHICH PARTS TO BE BRAZED ARE POSITIONED, A PLURALITY OF ELECTRICAL HEATING ELEMENTS DISPOSED ON SAID SURFACES, MEANS TO MAINTAIN SAID ELEMENTS UNDER
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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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |