US3550340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular decorative wall construction
Assignee: Parkline Corp
•
Filing: 1969-07-29
•
Granted: 1970-12-29
•
Expires: 1989-07-29
Abstract
No abstract record available.
Inventors
- 👤 Louis E Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:52
CPC Classifications
E; E04; E04F; E04F19/00; E04F19/02; E04F19/06; E04F13/00; E04F13/07; E04F13/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-28 | 1974-06-29 | 1974-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-28 | 1978-06-29 | 1978-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-28 | 1982-06-29 | 1982-12-29 | $7700.00 | Window Closed / Lapsed |