Patent US3432916A successfully refreshed from Google Patents.
US3432916A
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US
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Method for making a joint for hardened aluminum tubing
Assignee: Up Right Inc
•
Filing: 1966-04-18
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Granted: 1969-03-18
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Expires: 1986-04-18
Abstract
No abstract record available.
Inventors
- 👤 Robert E Fisher
- 👤 Rijkent W Kofman
- 👤 Ernest D Reichert
- 👤 Reinold H Visser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:58
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/04; B21D39/08; B21D39/20; B21D39/203; B21D39/206; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49936; Y10T29/49938; Y10T29/4994; Y10T403/00; Y10T403/49; Y10T403/4983
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1442629A
Cited
US1823158A
Cited
GB371226A
Cited
US2443249A
Cited
GB689043A
Cited
US2754577A
Cited
US2737996A
Cited
US3149513A
Cited
US3188733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |