US934579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deformed collective lens.
Assignee: Carl Zeiss SMT GmbH
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Filing: 1909-04-01
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Granted: 1909-09-21
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Expires: 1929-04-01
Abstract
No abstract record available.
Inventors
- 👤 Rudolf Straubel
- 👤 Moritz Von Rohr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:40
CPC Classifications
G; G02; G02B; G02B3/00; G02B3/02; G02B3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1912-09-20 | 1913-03-22 | 1913-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-09-20 | 1917-03-22 | 1917-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-09-20 | 1921-03-22 | 1921-09-21 | $7700.00 | Window Closed / Lapsed |