Patent US2720097A successfully refreshed from Google Patents.
US2720097A
Expired / Lapsed
US
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Surgical stocking
Assignee: Individual
•
Filing: 1952-08-11
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Granted: 1955-10-11
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Expires: 1972-08-11
Abstract
No abstract record available.
Inventors
- 👤 Mond William De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:39
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/06; A61F13/08; D; D04; D04B; D04B1/00; D04B1/10; D04B1/102; D04B1/106; D04B1/22; D04B1/24; D04B1/26; D04B1/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US882951A
Cited
US2057056A
Cited
US2013396A
Cited
US2146966A
Cited
US2282274A
Cited
US2584944A
Cited
US2574737A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-10 | 1959-04-11 | 1959-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-10 | 1963-04-11 | 1963-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-10 | 1967-04-11 | 1967-10-11 | $7700.00 | Window Closed / Lapsed |