US3028659A
Expired / Lapsed
US
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Storage matrix
Assignee: Ambac International Corp
•
Filing: 1957-12-27
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Granted: 1962-04-10
•
Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Chow Wen Tsing
- 👤 William H Henrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:20
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/14; G11C17/16; G11C8/00; G11C8/04; Y; Y10; Y10S; Y10S148/00; Y10S148/055; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011; Y10T29/4902; Y10T29/49069; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49156; 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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |