US3520099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking building siding unit
Assignee: MASTIC CORP
•
Filing: 1968-09-16
•
Granted: 1970-07-14
•
Expires: 1988-09-16
Abstract
No abstract record available.
Inventors
- 👤 Lee H Mattes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:44
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0864
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2173774A
Cited
US3110130A
Cited
US3214876A
Cited
US3246436A
Cited
US3304676A
Cited
US3290845A
Cited
US3430395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-13 | 1974-01-12 | 1974-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-13 | 1978-01-12 | 1978-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-13 | 1982-01-12 | 1982-07-14 | $7700.00 | Window Closed / Lapsed |