US3448642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Textron Inc
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Filing: 1966-08-02
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Granted: 1969-06-10
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Expires: 1986-08-02
Abstract
No abstract record available.
Inventors
- 👤 Walter Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:46
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0009; B23B; B23B29/00; B23B29/24; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/5128; Y10T408/00; Y10T408/55; Y10T408/89; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896; Y10T82/00; Y10T82/25; Y10T82/2531
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2347791A
Cited
US2629468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |