Patent US2672138A successfully refreshed from Google Patents.
US2672138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device to promote nasal breathing and prevent snoring
Assignee: Individual
•
Filing: 1950-09-05
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Granted: 1954-03-16
•
Expires: 1970-09-05
Abstract
No abstract record available.
Inventors
- 👤 Carlock Marion Pomeroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:12
CPC Classifications
A; A61; A61M; A61M15/00; A61M15/08; A61F; A61F5/00; A61F5/56; A61M15/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US753133A
Cited
DE28036C
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US682123A
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US888869A
Cited
US1139357A
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US1160797A
Cited
US1221778A
Cited
FR830545A
Cited
US2433565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |