US3401494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal stud for polystyrene foam sheets
Assignee: Individual
•
Filing: 1967-01-23
•
Granted: 1968-09-17
•
Expires: 1987-01-23
Abstract
No abstract record available.
Inventors
- 👤 Dallas A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:07
CPC Classifications
E; E04; E04D; E04D3/00; E04D3/36; E04D3/3601; E04D3/3602; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/20; E04C2/205; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |