US2634530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: PANOCULAR Corp
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Filing: 1949-12-10
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Granted: 1953-04-14
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Expires: 1969-12-10
Abstract
No abstract record available.
Inventors
- 👤 Richard L Herschede
- 👤 Jr Albert E Gates
- 👤 William F Herschede
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:26
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0081; G02B6/0086; G02B6/0091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1199418A
Cited
US1364916A
Cited
US1840325A
Cited
FR816795A
Cited
US2157772A
Cited
US2347665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |