US3539323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for assembling sealed contact switches
Assignee: AT&T Inc
•
Filing: 1967-03-03
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Granted: 1970-11-10
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Expires: 1987-03-03
Abstract
No abstract record available.
Inventors
- 👤 Glenn Adrian Marlin
- 👤 James Clifford Mcconnell
- 👤 Wilhelm Emil Albert Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:47
CPC Classifications
H; H01; H01H; H01H11/00; H01H11/005; C; C03; C03B; C03B23/00; C03B23/20; H05; H05B; H05B3/00; H05B3/0033; H05B3/0038; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49105; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53248
Claims Analysis
Total Claims: 0
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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) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |