Patent US2829456A successfully refreshed from Google Patents.
US2829456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for sectionally viewing maps, plans or the like
Assignee: Individual
•
Filing: 1955-03-28
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Granted: 1958-04-08
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Expires: 1975-03-28
Abstract
No abstract record available.
Inventors
- 👤 Hutterer Johann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:54
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/02; G09F; G09F11/00; G09F11/02; G09F11/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US685630A
Cited
US729599A
Cited
US734538A
Cited
US1436625A
Cited
US1830510A
Cited
US2141398A
Cited
US2139149A
Cited
US2353265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |