US2539097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beam trammel
Assignee: Individual
•
Filing: 1944-07-07
•
Granted: 1951-01-23
•
Expires: 1964-07-07
Abstract
No abstract record available.
Inventors
- 👤 Carl J O'rourke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:11
CPC Classifications
B; B43; B43L; B43L9/00; B43L9/02; B43L9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US336868A
Cited
US617014A
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US813095A
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US972106A
Cited
US1007424A
Cited
US1001433A
Cited
GB122479A
Cited
DE560261C
Cited
US2178293A
Cited
US2355585A
Cited
US2338001A
Cited
US2311234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |