US3484827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular railing system
Assignee: Individual
•
Filing: 1968-06-03
•
Granted: 1969-12-16
•
Expires: 1988-06-03
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:54
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/181
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US112887A
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CH26405A
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AT44864B
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US1441724A
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US1526638A
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US2150651A
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US2930638A
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US3218036A
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US3313527A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |