Patent US2610502A successfully refreshed from Google Patents.
US2610502A
Expired / Lapsed
US
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Boundary marker
Assignee: Individual
•
Filing: 1945-10-20
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Granted: 1952-09-16
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Expires: 1965-10-20
Abstract
No abstract record available.
Inventors
- 👤 Axel S Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:28
CPC Classifications
G; G01; G01C; G01C15/00; G01C15/02; G01C15/06; E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/646; E04; E04H; E04H13/00; E04H13/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US55445A
Cited
US556798A
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US595038A
Cited
US918579A
Cited
US1120041A
Cited
US1087567A
Cited
US2276749A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |