US3229229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable resonant frequency circuits
Assignee: Individual
•
Filing: 1962-12-05
•
Granted: 1966-01-11
•
Expires: 1982-12-05
Abstract
No abstract record available.
Inventors
- 👤 Louis M Tozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:00
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/02; H03C3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A NETWORK HAVING RESONANCE FREQUENCIES WHICH VARY LINEARLY WITH THE VARIATION OF CONTROL FUNCTION COMPRISING: (A) A VARIABLE REACTIVE ELEMENT THE REACTANCE OF WHICH VARIES ACCORDING TO THE FUNCTION
Claim 2
Dependent Claim
29 words
A NETWORK HAVING RESONANCE FREQUENCIES WHICH VARY LINEARLY WITH THE VARIATION OF CONTROL FUNCTION COMPRISING: (A) A VARIABLE REACTIVE ELEMENT THE REACTANCE OF WHICH VARIES ACCORDING TO THE FUNCTION
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |