Patent US2986811A successfully refreshed from Google Patents.
US2986811A
Expired / Lapsed
US
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Apparatus and methods for brazing
Assignee: Magnetic Heating Corp
•
Filing: 1954-02-23
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Granted: 1961-06-06
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Expires: 1974-02-23
Abstract
No abstract record available.
Inventors
- 👤 Wallace C Rudd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:21
CPC Classifications
F; F16; F16J; F16J13/00; B; B23; B23K; B23K3/00; B23K3/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49393
Claims Analysis
Total Claims: 0
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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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |