US3513269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earform mold for supporting acoustic apparatus on a wearer's ear and method of making the mold
Assignee: Pacific Plantronics Inc
•
Filing: 1967-01-26
•
Granted: 1970-05-19
•
Expires: 1987-01-26
Abstract
No abstract record available.
Inventors
- 👤 Donald R Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:45
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/65; H04R25/652; H04R25/656; H04R25/658; H04R25/659
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2882348A
Cited
US3097059A
Cited
US3208102A
Cited
US3258533A
Cited
US3309447A
Cited
US3375822A
Cited
US3389232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |