US3267222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intercommunication test set
Assignee: Individual
•
Filing: 1966-01-07
•
Granted: 1966-08-16
•
Expires: 1986-01-07
Abstract
No abstract record available.
Inventors
- 👤 Billy B Chipp
- 👤 Mickey H Kinkade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:41
CPC Classifications
H; H04; H04R; H04R29/00; H04R29/004; H04B; H04B3/00; H04B3/02; H04B3/46
Claims Analysis
Total Claims: 0
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |