US3536345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track for steel stud partitions
Assignee: BOSTWICK STEEL LATH Co
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Filing: 1968-07-26
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Granted: 1970-10-27
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Expires: 1988-07-26
Abstract
No abstract record available.
Inventors
- 👤 John L Leifer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:43
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/58; E04B1/5806; E04B1/5818; E04B2/00; E04B2/74; E04B2/76; E04B2/766; E04B2/767; F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/048; F16B7/0486; E04B2/7407; E04B2/7453; E04B2/7457; E04B2/78; E04B2/7854; E04B2/789
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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |