Patent US2851277A successfully refreshed from Google Patents.
US2851277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated ski
Assignee: Individual
•
Filing: 1955-08-04
•
Granted: 1958-09-09
•
Expires: 1975-08-04
Abstract
No abstract record available.
Inventors
- 👤 Hartvig E Holmberg
- 👤 Harry E Holmberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:07
CPC Classifications
A; A63; A63C; A63C5/00; A63C5/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2184791A
Cited
US2490549A
Cited
US2581532A
Cited
GB631879A
Cited
US2560693A
Cited
FR979589A
Cited
US2695178A
Cited
US2694580A
Cited
US2791435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |