US3141179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Listening pillow
Assignee: Individual
•
Filing: 1962-07-16
•
Granted: 1964-07-21
•
Expires: 1982-07-16
Abstract
No abstract record available.
Inventors
- 👤 Clyde L Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:23
CPC Classifications
A; A47; A47G; A47G9/00; A47G9/10; A47C; A47C21/00; A47C21/003
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) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |