Patent US3994689A successfully refreshed from Google Patents.
US3455294A
Expired / Lapsed
US
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Respiratory device
Assignee: RICHARD H ADLER
•
Filing: 1966-02-25
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Granted: 1969-07-15
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Expires: 1986-02-25
Abstract
No abstract record available.
Inventors
- 👤 Richard H Adler
- 👤 John K Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:21
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0045; A61M16/08; A61M16/0816; A61M16/0833
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) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |