US3406946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety rail for concrete building
Assignee: Individual
•
Filing: 1967-01-30
•
Granted: 1968-10-22
•
Expires: 1987-01-30
Abstract
No abstract record available.
Inventors
- 👤 Robert H Saultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:45
CPC Classifications
E; E04; E04H; E04H17/00; E04H17/14; E04H17/1413; E04G; E04G21/00; E04G21/32; E04G21/3204; E04G21/3223; E04H17/1447; E04H17/1482; E04H17/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US583027A
Cited
GB190511322A
Cited
US1135817A
Cited
US1215356A
Cited
US2057018A
Cited
US2603456A
Cited
US3170201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |