US3428043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bandage containing absorbed therapeutic materials
Assignee: National Patent Development Corp
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Filing: 1966-06-09
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Granted: 1969-02-18
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Expires: 1986-06-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Shepherd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:20
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/00051; A61F13/00063; A61F13/15; A61F13/51; A61F13/511; A61F13/512; A61F13/84; A61F13/8405; A61F2013/00089; A61F2013/00246; A61F2013/00251; A61F2013/00361; A61F2013/00544; A61F2013/00604; A61F2013/00608; A61F2013/00855; A61F2013/00859; A61F2013/00902; A61F2013/0091; A61F13/53; A61F2013/530481
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) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |