Patent US3240979A successfully refreshed from Google Patents.
US3240979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum tube envelope with terminal locating means
Assignee: Individual
•
Filing: 1962-06-22
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Granted: 1966-03-15
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Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 Nicholson Henrietta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:32
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
IN A VACUUM TUBE, A VERTICAL GLASS ENVELOPE, A PLURALITY OF DEPENDING CONTACT PRONGS ON THE BOTTOM OF SAID ENVELOPE, SAID PRONGS BEING LOCATED ON A CIRCLE COAXIAL WITH THE ENVELOPE AND BEING ARRANGED IN A CIRCULAR SERIES WITH CERTAIN PRONGS SPACED DIFFERENTLY FROM OTHER PRONGS, REQUIRING SPECIFIC ORIENTATION WHEN THE TUBE IS INSERTED IN AN ASSOCIATED SOCKET, A HEAD MEMBER SUBSTAN-
Claim 2
Dependent Claim
62 words
IN A VACUUM TUBE, A VERTICAL GLASS ENVELOPE, A PLURALITY OF DEPENDING CONTACT PRONGS ON THE BOTTOM OF SAID ENVELOPE, SAID PRONGS BEING LOCATED ON A CIRCLE COAXIAL WITH THE ENVELOPE AND BEING ARRANGED IN A CIRCULAR SERIES WITH CERTAIN PRONGS SPACED DIFFERENTLY FROM OTHER PRONGS, REQUIRING SPECIFIC ORIENTATION WHEN THE TUBE IS INSERTED IN AN ASSOCIATED SOCKET, A HEAD MEMBER SUBSTAN-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |