US2889121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet paper roll core
Assignee: Individual
•
Filing: 1952-02-16
•
Granted: 1959-06-02
•
Expires: 1972-02-16
Abstract
No abstract record available.
Inventors
- 👤 Lawrence A Heinle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:51
CPC Classifications
A; A47; A47K; A47K10/00; A47K10/16; B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US877755A
Cited
US1207280A
Cited
FR552597A
Cited
US2164817A
Cited
US2324969A
Cited
US2320740A
Cited
US2694532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |