Patent US4248685A successfully refreshed from Google Patents.
US1481084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood-pressure recorder
Assignee: Individual
•
Filing: 1921-12-24
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Granted: 1924-01-15
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Expires: 1941-12-24
Abstract
No abstract record available.
Inventors
- 👤 Charles E Dressler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:57
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; Y; Y10; Y10S; Y10S128/00; Y10S128/90; Y10T; Y10T24/00; Y10T24/13; Y10T24/1321; Y10T24/1324; Y10T24/1329
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-01-14 | 1927-07-16 | 1928-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-01-14 | 1931-07-16 | 1932-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-01-14 | 1935-07-16 | 1936-01-15 | $7700.00 | Window Closed / Lapsed |