US3377581A
Expired / Lapsed
US
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Apparatus for woven screen memory devices
Assignee: Bunker Ramo Corp
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Filing: 1963-11-12
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Granted: 1968-04-09
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 David R Boles
- 👤 John S Davis
- 👤 Paul E Wells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:12
CPC Classifications
D; D03; D03D; D03D1/00; D03D1/0082; D03D1/0088; D03D15/00; D03D15/50; D03D15/507; D03D25/00; D10; D10B; D10B2401/00; D10B2401/16; D10B2401/18; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069; Y10T29/53; Y10T29/5313; Y10T29/53165
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) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |