US3354471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ear guards
Assignee: Individual
•
Filing: 1965-05-10
•
Granted: 1967-11-28
•
Expires: 1985-05-10
Abstract
No abstract record available.
Inventors
- 👤 Margaret E Longo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:29
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2712134A
Cited
US428511A
Cited
US958263A
Cited
US1468556A
Cited
US1845689A
Cited
GB510419A
Cited
US2428897A
Cited
US2593892A
Cited
US2700162A
Cited
US3082431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |