Patent US2830855A successfully refreshed from Google Patents.
US2830855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffolding connection
Assignee: Individual
•
Filing: 1955-02-02
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Granted: 1958-04-15
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Expires: 1975-02-02
Abstract
No abstract record available.
Inventors
- 👤 Hyre Robert Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:58
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/30; E04G7/302; E04G7/303; E04G7/304; F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/048; F16B7/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1204552A
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US1229240A
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US1390485A
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US1787017A
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US1909941A
Cited
US2043850A
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US1998936A
Cited
US1981705A
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US2467688A
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US2601385A
Cited
US2561938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |