US2865283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming dry compressed compact sponge unit
Assignee: Individual
•
Filing: 1955-03-30
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Granted: 1958-12-23
•
Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Lewis J Stoffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:07
CPC Classifications
A; A47; A47K; A47K7/00; A47K7/02; A47L; A47L1/00; A47L1/06; A47L1/15; C; C08; C08J; C08J9/00; C08J9/36; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24736
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191206082A
Cited
US1292982A
Cited
US2204202A
Cited
GB539785A
Cited
US2659935A
Cited
US2689642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |