US3508554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medico-surgical tubes having frosted surface
Assignee: Malco Inc
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Filing: 1968-11-04
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Granted: 1970-04-28
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Expires: 1988-11-04
Abstract
No abstract record available.
Inventors
- 👤 David S Sheridan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:26
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/02; A61L; A61L29/00; A61L29/04; A61L29/041; A61M25/0009; A61M25/0043; A61M2025/006; A61M2025/0213; A61M2025/022; A61M2025/0246; Y; Y10; Y10S; Y10S128/00; Y10S128/912
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) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |