US2731744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible bar type bump gate
Assignee: Individual
•
Filing: 1952-08-25
•
Granted: 1956-01-24
•
Expires: 1972-08-25
Abstract
No abstract record available.
Inventors
- 👤 Schnell Aaron Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:09
CPC Classifications
E; E06; E06B; E06B11/00; E06B11/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1359764A
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US1628651A
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US1620669A
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US1933244A
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US2370884A
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US2582666A
Cited
US2546026A
Cited
US2540562A
Cited
US2629192A
Cited
US2605565A
Cited
US2642683A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |