US3441995A
Expired / Lapsed
US
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Method and apparatus for making a thermally insulating joint construction
Assignee: Reynolds Metals Co
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Filing: 1966-10-06
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Granted: 1969-05-06
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Expires: 1986-10-06
Abstract
No abstract record available.
Inventors
- 👤 Donald H Revell
- 👤 William A Nolan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:44
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/263; E06B3/273; B; B21; B21D; B21D49/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49625; Y10T29/49627; Y10T29/49789; Y10T29/49796; Y10T29/49826; Y10T29/49908; Y10T29/49924; Y10T29/49925
Claims Analysis
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |