US2845307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable coupling for scaffold elements
Assignee: SUPERIOR SCAFFOLD CO
•
Filing: 1954-04-19
•
Granted: 1958-07-29
•
Expires: 1974-04-19
Abstract
No abstract record available.
Inventors
- 👤 Tracy S Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:54
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/30; E04G7/302; E04G7/306; E04G7/308; Y; Y10; Y10T; Y10T403/00; Y10T403/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US427180A
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US436653A
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US1581748A
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US844907A
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US1101158A
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US1136786A
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US2381633A
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US2555782A
Cited
US2604678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |