Patent US3069766A successfully refreshed from Google Patents.
US3069766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of brazing metals
Assignee: Rohr Inc
•
Filing: 1958-04-04
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Granted: 1962-12-25
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Expires: 1978-04-04
Abstract
No abstract record available.
Inventors
- 👤 Hugh M Rush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:49
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/0008; B23K1/0014; Y; Y10; Y10S; Y10S206/00; Y10S206/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
THE METHOD OF BRAZING TWO THIN METAL SHEETS TO THE OPPOSITE FACES OF A METAL PLATE WHICH COMPRISES THE STEPS OF ETCHING SETS OF NARROW SHALLOW INTERSECTING GROOVES IN
Claim 2
Independent Claim
29 words
THE METHOD OF BRAZING TWO THIN METAL SHEETS TO THE OPPOSITE FACES OF A METAL PLATE WHICH COMPRISES THE STEPS OF ETCHING SETS OF NARROW SHALLOW INTERSECTING GROOVES IN
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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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |