US2620494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorbent protective pad
Assignee: Individual
•
Filing: 1947-11-05
•
Granted: 1952-12-09
•
Expires: 1967-11-05
Abstract
No abstract record available.
Inventors
- 👤 Leah A Kay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:10
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/48; A61F5/485; A61F13/00; A61F13/15; A61F13/53; A61F13/534; A61F13/56; A61F13/64; A61F13/51; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/53445; A61F2013/5661; A61F2013/5694; Y; Y10; Y10S; Y10S297/00; Y10S297/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US194831A
Cited
US797434A
Cited
US819903A
Cited
US1061259A
Cited
GB191306472A
Cited
US1583334A
Cited
US2355635A
Cited
US2371390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |