US2925141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder net
Assignee: FRIEDER
•
Filing: 1955-04-14
•
Granted: 1960-02-16
•
Expires: 1975-04-14
Abstract
No abstract record available.
Inventors
- 👤 Leonard P Frieder
- 👤 Walter S Finken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:33
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/12; B66C1/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US308334A
Cited
US471861A
Cited
US686182A
Cited
US1365511A
Cited
FR607325A
Cited
FR697189A
Cited
US1867327A
Cited
US2286936A
Cited
US2440712A
Cited
US2659956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |