Patent US3464410A successfully refreshed from Google Patents.
US3464410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Respiratory pad
Assignee: Individual
•
Filing: 1966-01-19
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Granted: 1969-09-02
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Expires: 1986-01-19
Abstract
No abstract record available.
Inventors
- 👤 William Buchanan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:41
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/12; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/047; A61M16/10; A61M16/1045
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) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |