US2855818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Altitude reading means for a theodolite
Assignee: Askania Werke AG
•
Filing: 1955-07-06
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Granted: 1958-10-14
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Expires: 1975-07-06
Abstract
No abstract record available.
Inventors
- 👤 Wehling Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:39
CPC Classifications
G; G01; G01C; G01C1/00; G01C1/02; G01C1/06; A; A63; A63C; A63C9/00; A63C9/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE276929C
Cited
US269486A
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US1722209A
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GB191229669A
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US2238032A
Cited
US2498273A
Cited
AT178209B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |