US3478479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite wall construction
Assignee: Kaiser Gypsum Co Inc
•
Filing: 1967-07-24
•
Granted: 1969-11-18
•
Expires: 1987-07-24
Abstract
No abstract record available.
Inventors
- 👤 Rocco Papalia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:58
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/02; E04F13/04; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/44; Y10T24/44017; Y10T24/44026; Y10T24/44641; Y10T24/44769; Y10T24/44906; Y10T24/44915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US770479A
Cited
US1853363A
Cited
US1801400A
Cited
US2236581A
Cited
US2323362A
Cited
US2851740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |