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US2687788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Land marker
Assignee: Individual
•
Filing: 1951-07-13
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Granted: 1954-08-31
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Expires: 1971-07-13
Abstract
No abstract record available.
Inventors
- 👤 Paul L Rapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:50
CPC Classifications
G; G01; G01C; G01C15/00; G01C15/02; G01C15/04; E; E04; E04B; E04B1/00; E04B1/38; E04B1/41; E04B1/4114; E04B1/4121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US412498A
Cited
US487727A
Cited
US1004188A
Cited
US1257324A
Cited
FR755283A
Cited
US2380692A
Cited
US2625815A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |