Patent US2704009A successfully refreshed from Google Patents.
US2704009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monocular
Assignee: Individual
•
Filing: 1950-05-01
•
Granted: 1955-03-15
•
Expires: 1970-05-01
Abstract
No abstract record available.
Inventors
- 👤 John A Haeseler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:47
CPC Classifications
G; G02; G02B; G02B23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1710109A
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US1796456A
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US2171360A
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US2277065A
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US2291821A
Cited
GB581779A
Cited
US2534061A
Cited
US2481409A
Cited
US2514257A
Cited
US2488188A
Cited
US2564704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-14 | 1958-09-13 | 1959-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-14 | 1962-09-13 | 1963-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-14 | 1966-09-13 | 1967-03-15 | $7700.00 | Window Closed / Lapsed |