US2920898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ski having a foamed plastic body portion
Assignee: Individual
•
Filing: 1956-06-19
•
Granted: 1960-01-12
•
Expires: 1976-06-19
Abstract
No abstract record available.
Inventors
- 👤 Richard T Metcalfe
- 👤 Edmond T Chrobak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:46
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/1228; A; A63; A63C; A63C5/00; A63C5/12; B29L; B29L2031/00; B29L2031/52; B29L2031/5263
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1317770A
Cited
US2434851A
Cited
US2417586A
Cited
US2581532A
Cited
FR985174A
Cited
US2559977A
Cited
US2716246A
Cited
US2764516A
Cited
US2795431A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |