US2881364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical assembly housing
Assignee: International Business Machines Corp
•
Filing: 1954-11-12
•
Granted: 1959-04-07
•
Expires: 1974-11-12
Abstract
No abstract record available.
Inventors
- 👤 Frederick M Demer
- 👤 Marks Beal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:05
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/02; H04B1/03; Y; Y10; Y10S; Y10S165/00; Y10S165/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2470037A
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US2593479A
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US2653181A
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US2614243A
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US2668933A
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US2787735A
Cited
US2703853A
Cited
US2641635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |