US2020668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tissue handkerchief and method
Assignee: Individual
•
Filing: 1935-03-22
•
Granted: 1935-11-12
•
Expires: 1955-03-22
Abstract
No abstract record available.
Inventors
- 👤 Wandel Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:13
CPC Classifications
B; B31; B31D; B31D1/00; B31D1/04; Y; Y10; Y10S; Y10S160/00; Y10S160/07; Y10S206/00; Y10S206/82; Y10S493/00; Y10S493/96; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1015; Y10T428/00; Y10T428/24; Y10T428/24025; Y10T428/24355; Y10T428/24446; Y10T428/24455; Y10T428/24463
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) | 1938-11-11 | 1939-05-13 | 1939-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-11-11 | 1943-05-13 | 1943-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-11-11 | 1947-05-13 | 1947-11-12 | $7700.00 | Window Closed / Lapsed |