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Patent US3532807A successfully refreshed from Google Patents.
US3532807A
Expired / Lapsed
US
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Automatic closed circuit television arc guidance control
Assignee: National Aeronautics and Space Administration
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Filing: 1967-10-05
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Granted: 1970-10-06
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Expires: 1987-10-05
Abstract
No abstract record available.
Inventors
- 👤 William A Wall Jr
- 👤 Douglas L Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:11
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/12; B23K9/127; B23K9/1272; B23K9/1274; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/12; B23Q35/127
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) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |