US3435504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making tube-in-sheet metal products
Assignee: Texas Instruments Inc
•
Filing: 1965-12-15
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Granted: 1969-04-01
•
Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 Edwin A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:58
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; B21D53/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T29/49369; Y10T29/49371; Y10T29/49805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2766514A
Cited
US2990608A
Cited
US3045330A
Cited
US3346936A
Cited
US3371399A
Cited
US3271846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |