US3452500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall paneling system
Assignee: Individual
•
Filing: 1966-11-16
•
Granted: 1969-07-01
•
Expires: 1986-11-16
Abstract
No abstract record available.
Inventors
- 👤 William C Heirich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:01
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803; E04F13/081; E04F13/0812
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US459051A
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US870382A
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US918824A
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US1714682A
Cited
US1810287A
Cited
US1900721A
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US3254462A
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US3234697A
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US3300934A
Cited
US3300926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |