US3105938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wireless microphone transmitter
Assignee: Individual
•
Filing: 1959-07-02
•
Granted: 1963-10-01
•
Expires: 1979-07-02
Abstract
No abstract record available.
Inventors
- 👤 Peter K Onnigian
- 👤 Kirstein Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:39
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/02; H04B1/03; H04B1/034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB561323A
Cited
US2820145A
Cited
US2999926A
Cited
US2879486A
Cited
US2917633A
Cited
US2972120A
Cited
US2936428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |