US3398982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment fitting for plaster panels
Assignee: NAT PLASTER BLOCK Manufacturing CO
•
Filing: 1967-01-12
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Granted: 1968-08-27
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Expires: 1987-01-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Edmond F Venzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:59
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/02; E04F13/04; E04F13/045; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/6112; F; F16; F16B; F16B5/00; F16B5/0004; F16B5/0008; F16B5/0028; E04B2/00; E04B2/72; E04B2/723; E04B2002/726
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2025794A
Cited
US2120709A
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US2232191A
Cited
US2615226A
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US2786249A
Cited
US2914148A
Cited
GB889857A
Cited
US3177988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |