Patent US2900980A successfully refreshed from Google Patents.
US2900980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulosic product
Assignee: Kimberly Clark Corp
•
Filing: 1954-09-30
•
Granted: 1959-08-25
•
Expires: 1974-09-30
Abstract
No abstract record available.
Inventors
- 👤 Kenneth J Harwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:21
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; Y; Y10; Y10T; Y10T442/00; Y10T442/10; Y10T442/184
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |