US2984703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
hartley
Assignee: —
•
Filing: —
•
Granted: 1961-05-16
•
Expires: 1978-05-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:06
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
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US2338636A
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US2513112A
Cited
US2595106A
Cited
US2594495A
Cited
US2767246A
Cited
US2580093A
Cited
US2531622A
Cited
US2724741A
Cited
US2851534A
Cited
US2865563A
Cited
US2805286A
Cited
US2886642A
Cited
US2886643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |