Patent US2542501A successfully refreshed from Google Patents.
US2542501A
Expired / Lapsed
US
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Archery sight
Assignee: Individual
•
Filing: 1949-02-23
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Granted: 1951-02-20
•
Expires: 1969-02-23
Abstract
No abstract record available.
Inventors
- 👤 Bert E Fredrickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:18
CPC Classifications
F; F41; F41G; F41G1/00; F41G1/46; F41G1/467
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US835112A
Cited
US1340996A
Cited
US1961517A
Cited
US1982489A
Cited
US2163503A
Cited
US2351103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |